See both sides but it should be about more than the football. While I've nothing against Russians who are against the war, ostracising Russia is about sending a message, and while it may be small in the grand scheme, it's still at a global level and worthy in my opinion.
Showing the world supports Ukraine should take priority. Like others have mentioned, there's young Ukrainians, civilians and otherwise, dying in their droves and I'd rather the world showed a small amount of support to their families than to a handful of fortunate Russians.