Fascism is inherently nativist, but people who complain about immigrants being housed in hotels might be concerned about the cost. For those (many - I'm not downplaying this) that are simply anti-immigrant, fascism also is inherently opposed to democracy and in favour of the creation of a militarised police state. Where do you get that from "whining about immigrants having shelter"? I don't think you can.

I think you're identifying that fascists are anti-immigrant and that fascism has some currency as a negative term and so want to bash anti-immigrant people with the label even though it doesn't apply.