By God, is that how you read it? The comparison to animals, that he could not live with people of different ethnicity? And by "ethnicity", this literally means "non-white" people, as he, as a Danish person, wanted to move to London and complains that there are too many foreigners.
This is the AfD-level right-wing, not your casual conservative. Regardless, it's pretty expected that people would not want to support someone who writes this awful kind of similes.