Many many words are better than "evil". How about "autocratic" or "dictatorial" or "power-hungry" or "delusional". Or perhaps a phrase like "ruthlessly uncompromising". All of them convey much more actual information and still have your judgemental tone.

For what its worth, I think "evil" is a word that shouldn't be used outside of storybooks. It is a binary word that is far too overgeneralised to the point it is meaningless to ascribe. It doesn't serve any persuasive or descriptive purpose.

I don't know. What is the word for "playing world cop, being full of crazy religious and racist nuts, having created KKK, being the worlds top incarceration rate, still having the death penalty, starting wars and protecting your "interests" right and left all over the globe where you have no place, getting in bed with all kind of dictators and fascist regimes --as long as they were not communist dictators they were ok-- , dropping nuclear bombs on civilians, and having the guts to point a hollier than thou finger on the rest of the world"?

Even that, I wouldn't call "evil" -- self-serving imperialistic and post-colonial would fit better. Evil is a BS biblical notion for pre-modern people. It's no way to look at history with a rational mindset, and doesn't offer any explanation of various acts, nor a historical perspective.