The long-term goal should be to build a grass-roots third party so as to break the duopoly.

Dozens of us will continue to vote for that long-term goal.

I’m not sure if you mean “vote for a third party in this election to move forward the long-term goal of a third party”?

The only thing that will help is getting rid of FPTP elections. If we could both (a) avoid fascism, and (b) ensure ranked choice or other voting actually is implemented for all elections, I’d weather a lot of pain for that long-term result. But between the two, of course preventing fascism is more important.