=> identify fascism. It should be easy.
=> everything that is NOT fascist should organize into a "front" or "coalition" with only ONE objective: to defeat fascism
=> you won't like most of the members. I was raped and tortured in one organization in Brazil that, in thesis, should be part of the anti-fascist front (PSTU). Would I sit with them on the same table? ABSOLUTELY. Until we defeat fascism.
=> the following day, they are my enemies again. My rape was not an "isolated case". They are so authoritarian that they actually helped empower fascism in Brazil by rejecting any alliance. But should they do it, YES, I would sit with them.
GROW THE FUCK UP.
You don't have to like, you don't have to approve. You just have to be on the side that fights fascism TO THE DEATH.