What's "rejecting capitalism?" You can't blow up the NYSE, but most everything else is fair game. Your employer isn't going to care if you reject capitalism so long as you get your work done. If you don't want to work under a capitalist, you can join join or start your own cooperative. If you can't do that, you can be an independent contractor. If you don't have the motivation to do that, you can fall back on the charity of others.

>Like look at Elon Musk - his whole deal is proving that there are no bad consequences to doing whatever he wants

Musk got ousted as board chair at at Tesla, and was forced to buy Twitter at a very overpriced valuation.