The link below, as you can see from the url, is an actual CIA document that demonstrates how long the US has been involved in promoting Nazism in the Ukraine. If you were born after 1948 then you haven't been alive as long as the US has been promoting Nazism in Ukraine so the Nazi's could be used to destabilize the area and cause the Russians big problems.
And you say Putin is the bad guy and didn't invade Ukraine for any legitimate reason. Would you say the US should tolerate this done to us? Do you think attempts to destabilize us and threaten our national security should be allowed to go on on our borders for 70+ years? If so then you think the Cuban missile crisis reaction by the US was evil if you are going to be logically consistent.