I will gladly engage any foreigner who wishes to do so. I have been doing it for decades in my professional life. As a general principle, "educated" people from around the world believe - absurdly - that they fully understand American Civics. The fact is that they are as ignorant on that subject as "we" are on the government workings of Paraguay, let alone Canada.
Of course, there is no response to raging Leftists who believe that s/he who speaks loudest or longest "wins" the argument. Same as here.
As for abuse, I can give as good as I get.