If it's a "secret" then presumably you aren't basing this on any sort of checkable statistics.

So, er, I think your argument comes down to "sure, they're bigots, but most of the people I know are bigots too so stop complaining". I don't find this a very convincing argument.

(And "the filthy foreigners are coming for our women" is, like, the oldest accusation in the book. Don't forget to add that they also kill children to use their blood in their blasphemous religious rituals.)