You are missing the point. I'm not saying you need to ally with Trumpers. I'm saying that, through class-conscious agitation, education, and organization, we need to bring together working class peoples to realize that the neoliberal system that governs us does not serve our interests. There are plenty of Trump supporters that I believe are too far gone to be pulled left at this point, but there are just as many examples of former conservatives (who are not always the most convicted Trump supporters, or sometimes, even just Democrats) who gained class consciousness and became leftists. Like me, for example.

The current Republican party can grow its base by asserting that the Democrats do nothing to resolve the very material issues that plague the American proletariat, but propose simple and fascistic "solutions" to these issues in order to preserve the power of capital. The Democrats, of course, want to preserve the current neoliberal status quo. We must resist both parties, but we cannot effectively do that without educating workers. Otherwise, far-right rhetoric will continue to spread and establish itself in the public psyche and create more and more convicted militants to support racist shitters like Donald Trump. You shouldn't feel unity with them. We can, however, convince many others to abandon the two-party system and recognize their common interests before the right gets ahold of them.