Overbooking is legislated. Don't like it, change the legislation.
I have been in situations where I am offered $800 to be voluntarily bumped. This is okay with me.
I would prefer not to be bumped off a flight, but the compensation is very generous, and I understand that it allows airlines to be more efficient and that they make really small margins and a lot are struggling. The free market is working and I pay a really low price for tickets.
I don't think this is the argument though. Its about one passenger kicking and screaming instead of doing what every other passenger would have done, and then take it up with the courts if necessary which would create new precedent that could be used to justify modifying the legislation.
I don't want to see people being dragged off planes, and the answer is not to "never drag people off planes". We live in a civil society where people are wronged, but they can pursue it in the courts.