I'm also surprised at just how many of my friends have turned from dovish "can't we all just get along" types into rabid "Russia Delenda Est" types who think that anyone who believes that even a modicum of this is perhaps America's fault is committing treason.
For what it's worth, what Russia is doing is wrong. But I do absolutely understand Mearsheimer's perspective that this is basically a Cuban Missile Crisis 2.0 moment. The United States should have clearly recognized that trying to get Ukraine into NATO or even the EU was clearly going to make the Russians think they're being backed into a corner security-wise. We could have just as easily kept trading with Ukraine and cooperating without starting the process to join NATO.
For what it's worth, what Russia is doing is wrong. But I do absolutely understand Mearsheimer's perspective that this is basically a Cuban Missile Crisis 2.0 moment. The United States should have clearly recognized that trying to get Ukraine into NATO or even the EU was clearly going to make the Russians think they're being backed into a corner security-wise. We could have just as easily kept trading with Ukraine and cooperating without starting the process to join NATO.