It's possible to support all of the same policies without referring to human beings as "parasites," and I don't think we should be flippant about what language is used. It's relevant. It reflects a state of mind.

I personally do not ever see myself voting for (or otherwise indirectly supporting) a politician that speaks like that, regardless of whether you can steelman it with more neutral language.

Isn't that what every politician who ended up doing an ethnic cleansing said?