Action is meaningless if everything is determined, if you were meant to act determinism would make you act cause even thousands of years ago it was fixed that today you would perform the actions that you make, cause you have no choice in the matter you do what the universe determines you must do.
You read wrong, i said everything is impossible without free will, we wouldn't have this conversation without free will i said if you could still perceive the world through your eyes, it would be like locked in syndrome where you have your mind but can't use it to influence anything but itself, cause everything that's going to happen even a million years from now is already determined in detail, you have no choice.
But you have, it's not an illusion, choosing to think that choice is an illusion is deluding yourself.
The environment you grew up in might give you the tendency to make certain choices, because it programmed you with certain believe systems, but if it determined your choices, again nothing would be possible, the first culture would remain intact eternally, no genius individual that will crush any belief system. you're ability to recognize patterns and meaning, your consciousness will eventually realize that your belief systems are a load of bull and you will make different decisions based on your knowledge.
Free will doesn't suggest you can act independently of natural law, free will is the fact that you can choose how to act upon the knowledge you acquire about natural law, The Powers That Be have a great understanding of natural law, but they choose to use it to control the masses, by keeping them ignorant, rather then to enlighten them.
you can choose to be lazy, you can choose to be violent, you can choose whatever, but not without the effects that belong to those actions.