Yes he should. He deliberately kick an opponent from behind. he could have seriously injured him.
If you condone that, that is your preogative.
Q. If one of our players had been kicked like that would you still be stating your case?
Ask yourself why I'd answer your question when you've offered me no such courtesy?
Under what law of the game is it a red? It's not it's a yellow.
With regards you question, I've answered earlier, I think it's a yellow all day long regardless of team.