That’s not an actual argument I’ve ever heard and I’m an anarchist myself, it usually goes more like:

Voting is a waste of time especially the more disenfranchised you are, mutual aid lasts longer and does more for people around you in the short term, in the long term you can build community get organized, and bargain for more than what simply voting can get you.

Personally that’s not a bad argument, see I’m living in Israel and my town’s going through gentrification, and the state I’m living under is fascist and the fascism is so normalized, not because of people like me refusing to vote, but because of liberals who were never so different from the fascists, constantly giving them ground, always bargaining for the bare minimum.

The only people actually getting anything done that is remotely positive are activists, like the people protesting to stop the genocide, and getting involved physically with sabotaging fascist efforts to stop humanitarian aid from getting into gaza.

Or at least that’s how it was months ago, i haven’t found it in me to listen to the news on quite a while, so what do i know.