You seem delusional. In reality, most Americans are far more violent and less stable then Canadians. The proof of that is obvious. However, if some degenerate is running around on our streets spitting on "liberals" ( or whatever enemy he's dreamed up ), he's going to likely get punched at some point, because we aren't push overs.
If Achilles28 identified himself on here, it would have serious ramifications on his real life. Many people who he must deal with in his life in Canada ( whether it be employers, colleagues, or even family ) would seriously question his sanity and morals based on his posts on this site.
And while legally it might be he can't be deported, people might try to persuade him to go to the US. In fact, there is something clearly wrong about his situation, it makes no sense for him to live here given his stated opinions. Which suggests to me he's either involved with criminal behavior or hiding from something in the US. Just a guess, but failing that I just don't get it why he lives here. When I say WIN-WIN, I mean it. You can get your "Patriot" back on US soil and he can help pay the US federal debt and his fair share of taxes.
