Reread the original comment. It's absolutely important to vote as loss prevention, but you're never going to get meaningful systemic change towards the left via voting.
Vote to protect, actually make grassroots movements like unionizing and organizing to move to the left.
Both are important, and you don't get to only pick one. You can do both, prevent fascism and genocide, while also building up leftist structures like unions and networks of mutual aid.
That's like asking you if you're going to wipe your ass after you shit or wash your hands, and saying you can only pick 1. This is the absolute dumbest "would you rather" and should be ignored and tossed in the trash.