I'm going to have to disagree with that.
It's a sad and dangerous misconception to wilfully believe that the far right as "worse" than the far left (If indeed that's what you're getting at), because, amongst other reasons the left alone had exclusive claim to the ideal of creating an "ideal" or "utopian" society where all men where equal.
Both extreme ends of the scale are equally as bad in practice, Stalin was just as racially motivated as Hitler, and committed genocide as well. Kulaks, Turks, Jews and many many other racial minorities were deported, killed or forced into slave labour. His economic policies led him to preside over great famines killing millions.
Your statement about the difference between class resentment and the presumed racial resentment of the right is a naive view of the world - in
EVERY case thought history of governance (or attempts thereof) by the far left, violence and bloodshed have followed in it's wake. From the very beginning Lenin instigated a campaign of terror against his political opponents, set up the Cheka, and eventually killed off all of the less radical Mensheviks. Not once has a far left government been established without being corrupted in the process away from "true" communism - all that's left is an authoritarian and totalitarian oligarchy, instigating mass surveillance, state terrorism, a cult of personality, absolute control of the economy, restrictions on the freedom of speech etc etc over it's populous with - which
is similar to the various fascist regimes of the world.
One also can't lay claim to the idea that various communist states were "for" their workers, and held workers rights to be paramount - indeed strikes within the Soviet Union were dealt with most severely, I read of one case where the the workers of a factory who were on strike were forced to sign a form upon resumption of work (at gunpoint) that said something along the lines of "I, a worthless pig and dissenter of the true communist cause hereby renounce all claims to legitimacy the above strike" - something even the most decadent western capitalist would never make his employee's do. It's also important to remember that liberal democracies have upheld workers rights, unions and the like far better than any other system of governance.
There is a very good book that talks at length about the various lies and misconceptions of socialism, and it's relative value against the far right, entitled "
Last Exit to Utopia". I suggest you read it if you're still of the opinion that one of the extremes of either end of the spectrum are better than the other.