Trying to frame this as 'America only' is extremely disingenuous by the media. There will be numerically significantly more events in America because America is a relatively large country and previous lapses in immigration enforcement have created dumb situations like having some 435,000 illegal aliens with criminal records! [1] But there's nothing particularly exceptional. Rather it's just the media fishing for the worst of the worst, and trying to frame it as representative, like usual.
Dog bites man isn't news, man bites dog is.
[1] - https://www.nbcnews.com/politics/national-security/trump-dep...