Being Complicit with the Genocide of Transfolks IS NOT having Zero Tolerance for Genocide
Furthermore, Its a hell of alot harder for minorities to band together when they are actively being genocided. Voting for the lesser of two evils allows for that Solidarity to form and expand. Voting will never directly bring about Socialism in America, but voting can give the working class time for Class Conciousness to form that will inevitably lead to that outcome.
Voting IS NOT a purity test, it is a dirty tool that must be used until other tools can be put in place to allow the workers to seize the means of production.