Re: Starfleet Marine Corps
And fighting ability/martial art too. I'll give TOS a pass, but there's no excuse for TNG (and later series) not hiring a professional trainer to work with the actors for fight scenes on some of the episodes, especially Worf.
It's easy to support someones beliefs if they are identical to your own.
Tolerating beliefs that you don't personal embrace, or even fully understand, is harder.