@prothero,
prothero;120684 wrote: The "Free" in free will is a misnomer as our actions are always constrained and influenced. The question more directly relates to determinism. Is there the "ability to do otherwise" do I have more than one possible action and more than one possible future which is dependent upon choice and "will". In this I think everyone believes and behaves as though they do have choices (the ability to do otherwise) and that those choices matter (result in alternative futures).
Did someone say we all have the same or equal choices? It may be harder for an addict to quit drugs, or a smoker (a form of addiction) to stop smoking or an obese sedentary person to lose weight. No one would deny this but to accept that it is harder does not mean that it is not "possible" for them to do "otherwise". The addict who heats the heroin, draws it into the syringe, injects it into his vein may be responding to or giving into his craving, his addiction and he may find it hard or difficult to stop but most of us assume that he could in fact do "otherwise", that his actions are not fixed "determined" by the laws of nature.
Our entire system of laws, justice and punishments and notions of morality and values are based on the notion of "free" will. In fact our entire behavior and notions of the future are based on the presumption of choices (truth) and consequences (alternative futures). You can verbally deny this but it would be hard to live without that notion of both choice and consequences. Why deny (especially without overwhelming evidence) that which you must presuppose in practice? Of what practical value is the denial of the notion of "free will"?
Let me try and be clear...
You equated the idea that there wasn't free will with the idea that there isn't a mind independent external reality. They can both be argued theoretically (although the free will one more convincingly), but, you claim, people don't act as if they are true. In other words, there isn't a situation where someone would say "well, there isn't actually an external reality, so I will do this". I agree with that. But there are situations where people would say "our actions are determined externally". So determinism etc are very relevant. One cannot simply dismiss it.
To say that no one completely denies free will is to say very little. On the other hand, acknowledging the truth of cause and effect increases our understanding of human nature and human behavior.
Are fat people fat because they are lazy? Are poor people poor because they are lazy? When someone tries to quit smoking and fails is it because they are weak? If your sole measuring stick is "could they do otherwise" (as it is for some people) how would you judge those people?