This support for fascism just shows how bad things are in the world and how there's no hope.
It's a logical reaction and I can understand it. I think having multiple imperialism poles is better than having one global imperialist power controlling everything. Of course this world situation is a far cry from anything even remotely desirable, but I'd still be more satisfied with a US loss against China, Russia, Iran etc than from a US win against them. An oligopoly is better than a monopoly.
Unfortunately we are stuck in the very unfortunate situation where the only viable alternatives are all fascists. I can understand the sentiment of supporting an opponent of the empire you are in, but people need to stop seriously supporting any empires.