I always say there's no such thing as anti capitalism, if you're buying something you're consuming. That demand you're creating has to be filled and it's usually at the cost of other people. Companies aren't making bank through any sort of ethical means. We're all forced participants in this shit system. Go live in the woods without buying anything and then you have the pleasure of calling yourself anti capitalist.
You can be both against the system and forced to participate in it to live correctly at the same time. I think there are fundamental issues with our current system, like it requires infinite growth to not fall apart (any year without growth means a massive increase in unemployment), and it makes automation a negative for the workers, when we as a society should be trying to automate all of our jobs away to be able to work less.
Not that previous attempts at changing the system went well, but it does not mean that we can't find a better one. For more than a thousand years, democracies failed and the divine right of kings felt like it would never go away.
This is the same logic as the post, just applied to workers in general.
Everyone's an anti-capitalist until men want to get their dicks wet.