Nothing here yet? Maybe the trichotomy is too complex for immediate comment. Or, alternatively, the connexion is so obvious and historic that folks already have their own mind-set(s) on the matter, and do not wish to be confused by 'facts'? Or, well, the weather has been nice---people are cooking out, and such like. Hmmmm.

I too have been looking forward to the comments on this topic with anticipation. Perhaps a starting point might be the Hindu metaphor of life as a game of cards: the hand you are dealt is the determinism part; how you play the hand is the free-will part. (This may explain why Kenny Rogers song, The Gambler, seems to have struck a special chord with a variety of people.) The laws of physics and physiology certainly impose limits on the possible but the world is a very complicated place. Rational blaming is difficult enough; a little observation makes it clear that much (perhaps most) of blaming is completely irrational. Blaming the victims, and resenting them for being victimized, is a favorite societal pastime since it frees the less disadvantaged from any obligation or responsibility. I'm not sure who said something to the effect that we can forgive those who hurt us but can never find it in our heart to forgive those whom we have hurt.

So if I forgive the evildoer does that mean I am objectifying/disrespecting another person by saying their acts have no emotional force on me and their reasons for acting can be disregarded?

Joan, your question is certainly pertinent to the topic. In the cold calculus of retributive justice, forgiveness is as much an evil as is the evil forgiven. However, it is possible to interpret forgiveness as asserting your freedom to do so; although, if the evil is extreme, exercising that freedom may be difficult, if not impossible. Nevertheless, as my wife's favorite televangelist says, holding a grudge is like drinking poison and expecting your enemy to die. After all, forgiveness is mostly about the forgiver, not the forgiven, is it not?

We all have heard how Jesus
Healed the lame
And made the blind to see
And drove evil demons into swine
And drowned them.
Such were His lesser works.
Nailed to the cross at Calvary
He died faultless, it is said
So even the worst sinner could be free.
In due time even Pontius Pilate
Became a Christian saint
Among the churches of Abyssinia
(So it is says in Collier's encyclopedia.)
How's that for forgiveness?

If resentment is based on intent, i.e. good will or bad will, then freedom of choice no longer becomes a factor and freedom ceases to be connected in any way to blame and resentment.

John C. in Berkeley sent the following questions during today's broadcast:
1. "Jean-Paul Sartre used the term bad faith to describe resentment as the blaming of one's own failure on external factors and therefore denying responsibility for oneself. Maybe Sartre thinks a mature moral being would not succumb to blaming another for the feelings his offense engenders. What about this view?"
2. "Is there a social resentment that grounds denunciation, indignation? Or is resentment a property of individual persons?"

The degrees of similarity does play a part.  I think a mathematician could assist in this problem. 
Freedom to act does naturally include all outcomes that are physically possible, and those are reinforced by physical contexts, and further reinforced and further reinforced, until common problems represent a statistical situation.  To blame is an aspect of communication.  One may communicate within himself and then behave with the thoughts of his inner communication right in the brain that can run the body or hallucinate....  There is a difference between origin and subsequent "origins".  To say, we are simply alive, and of all the things to happen in the car:
Why was I not prepared to have my legal responsibility of remaining two seconds away from a vehicle in front of me taken away; (answer to personal question) because that is my responsibility, and furthermore, I am now consciously aware that I could be blamed for any action that the driver behind me does take, however much I could agree or disagree. 
Resentment suggests that one feels entitled.  I'm not sure if it's utopian or suggests some other thing.  I have experienced resentment, and did express it verbally and actively which would call upon my environment, to my attentions, as needing to give insight or input or apology and addressing whatever issue I had.  I could've relied on religion or reason or the judge of a court.  But the expression of emotion does let others and self judge or otherwise consider with a context of reason and with purpose, often unmet with direct expression or definition for it being boring or unnecessary.  It let's others know that it could happen to them, and do they care?
Freedom is never utilized by a component.  People are components, in most contexts, for example.  Freedom is arbitrary and freedoms are often requested; components play with freedom and express it's capabilities.  Resentment is a feeling that causes actions, yeah.  Resentment is personal and includes not one singular thing but a history.  Blame is safe and healthy as it puts an active focus to circumstances and allows one to play with freedom, in the way I've already described.  To blame does make use of the environment and imposes a context and reality to components, but that is done with things that we like, also, and often enjoy being "beautiful" or "fun to be around", which we didn't ask for.  When we blame or become resentful, we are actively calling on our environment to recognize it with whatever extent of blatancy.  And it will or should for one's attention is on it, and the lines can be drawn between cause and effect to an end with whatever imagination is applied to it. 
 
He cut you off and my cat peed, if front of me, on something, sure, but in my room.  He's been quite cozy in there and has seen me flick ashes right on the floor, and I also thought it proper to leave a hair ball that he coughed up halfway onto an envelope, to show him that his dirt is not dirtier than my dirt, and he started at that hairball and slept next to it, as if he loved it being there.  So I Lysoled the shit out of the pee that had gotten on the floor, for having been curious why he was sitting so casually on my bag; and told him not to pee there, and covered the spot with a shirt, to signify that some cat harming chemical was a bit too accessible to the very cat that was the reason that Lysol was sprayed.  But I treat my cat like a sentient being at all.  So.  I'm going to move the litter box.  My fault for all the reasons it is, and to meet those reasons with my actions does effectively solve some problems I had had.  It doesn't remove the origin, and that would be a terrible problem to have.