(or, if you're not American, insert the largest socialist org in your own country here)
People quitting their jobs en masse is nothing more than an economic trend and it will fizzle and die the second the economic winds change, if it is not coordinated and organized at a mass level in a socialist organization.
DSA is still the largest socialist org in the US, and its orientation and fate is not yet set in stone. Locals around the country are doing incredible work, despite the problems with national leadership. It is very possible for motivated people to contest and create the future of the org. Every day that ideologically committed people like you, the person reading this, waffle and come up with excuses for why you aren't involved in a national socialist organization, DSA drifts further toward being a non-profit for the democrats.
the iron is still hot, strike while you can