The philosophical architects of liberalism made an exception for savages, people too backwards to appreciate liberty. Socialism made exceptions for the bourgeois, people too attached to their ownership of the means of production to be beyond saving. Conservatism is built upon the idea that some people are better than others.
There's always an exception. And somehow, that exception always becomes the norm, we enter into a state of exception. There's savages everywhere! The bourgeois control everything! Equality! It's time to kill people.
In no uncertain terms, ~~fuck that~~ no. If people believe asinine things, they (as a person, not as a holder of asinine beliefs) should be respected nonetheless. Classic Aristotle quote:
It is the mark of an educated mind to be able to entertain a thought without accepting it
Refusing to entertain, "respect', or consider beliefs that you think are astoundingly stupid and wrong is basically an internal admission of being intellectually weak or a coward. Take your pick. Differences in how people see the world exist and that doesn't automatically preclude collaboration and cooperation. In fact, it makes finding the best path to some goal far less likely to end in ruin.
From here:
If we’re going to engage in the deliberative model, we’d have to begin by rejecting that notion that only our position is legitimate; we’d have to value the inclusion of diverse points of view. The deliberative model says that we should take on the extraordinarily difficult task of arguing together, looking for policies that make everyone at least a little unhappy, but that are in the long-term best interest of everyone, or, at the very least, the long-term better interest of everyone.
That is, it's in our collective best interest to respect everyone without exception. I suppose it's hard if you're just intellectual weak, but don't choose to be a coward. Respect other people.
And if you're like, "Well, what about the interests of Nazis?!", then read the second sentence of the title. But if you think that means appeasing them, then read the article linked by the word 'here' above.
Edit: This was a really useful exercise. Thanks, y'all!