Can we fight back? We can wait until we can vote, but do we really expect fascists to play by the rules? Would it be unethical if we tried to get the enemy fighting among themselves? First unite their smaller fractions against the largest fraction? Then do the same with what is left? In their own Internet hideouts? Play their ego's against each other? For example at "X" "Elon is only dragged down by Trump". At "Truth social" the opposite "Elon tries to push Trump out!" etc. Many of their followers are not evil people, they are misled. Don't attack them or try to use facts to convince them as that just doesn't help. Just ask questions like you are ignorant, so at one point they start to see the ugly truth themselves. Some never will though and some are just evil themselves. But many will see it in the end. We let fascism rule once, why again? Stop the evil empire!
I do feel you need to be careful. It seems to get worse and worse by the hour. To get a feeling for who might be trusted, you might talk about related things in the news, events or people you know in a neutral manner and carefully watch someone's response. For advice and such, I guess you can only rely on Canada/Europe/New zealand/Australia from now on. Consider this a war situation in an occupied country.