I think I tend to agree with you here. All this talk about how she hates foreigners kind of misses the point that she is a politician trying to represent constituents who voted for Brexit. In her mind she will be fighting for the things they wanted out of the vote. We may never actually know what her personal views on the issue are.
It’s funny because if you read the ‘below the line’ comments on a paper like the Daily Mail, they see her as a remainer whose heart is not in it, or even going so far as claiming she is sabotaging the process. Yet on here she is seen as relishing the process, eager to enact her dreams of kicking out foreigners.