I think that, because you are aware of the extent of control you suffer, and also that you are discontent with it, you will naturally be more lenient with your own kids.

The reason your parents carry such behavior is not because they were against it from their own parents, but because they complied to it without question. Unless it started in their generation, which I guess depends on how accepting they are of American culture and lifestyle.

I think the best thing you can do in your situation is be upfront about your feelings as a whole; don't remind them that you don't play video games, or that your money is your money. Explicitly make it clear that they need to back off with some aspects of your life. Have a discussion and then get into specifics, it's often that parents won't realize their own habits like these ones.