> The US has annexed parts of Mexico before
Whataboutism. And, yeah, that was super bad. So, for that matter, was the whole colonial era. But none of those guys are still the leaders of nuclear-capable nation states, so they're a little less relevant than Putin to our prospects going forward.
> are not proven beyond reasonable doubt.
This is not a court of law. My standard for "observing events as likely true on internet comment threads" falls somewhere below "beyond a shadow of a reasonable doubt" and somewhere above "preponderance of evidence." But I'd say for these cases we're way closer to the former than the latter.
> Wikipedia link.
On the other hand, Russian nationalists and apologists of Russian politics are sometimes criticised for using allegations of "Russophobia" as a form of propaganda to counter criticism of Russia.[14][15]