As long as an ideology is small enough, completely shunning it's adherents is actually the best strategy, because everyone is susceptible to social pressure.

But I fear that at 40% of the population, and with the social bubble people have build around them, Trump's neo-fascist movement may be beyond the reach of such tactics.

> it's on the question of what should be done about it

Everything that is legal. When, in the past, Republicans advocated trickle-down economics you possibly had a chance to convince people with arguments.

But I'm equally pessimistic about convincing anybody rationally. Trump and his supporters live in a reality completely divorced from any actually existing facts. It's this world with FEMA death camps and vast conspiracies planning to use the national guard to invade Texas and sell it to Mexico. There is no overlap anymore in what sources, what types of arguments, what axiomatic moral laws the two tribes consider valid.

Both strategies seeming comparably useless, I decided at some point that, when my grandchildren ask me in 40 years or so I want to be able to say "I did everything that's legal".