Ok I hear you. Maybe I just lashed out too quickly. You're right that when you point out something like "some people deny that Crimea was an invasion", saying "the other side did X" adds nothing. But I guess that I find the hypocrisy so disgusting that I go out of my way to add it to conversations, even when not directly related :-/
Agreed, there's no end of hypocrisy and double standards, on all sides, all around. The only way I know to counter it is... to try not to echo it (as often as I may feel tempted to do so).