I thought all the sudden out-of-nowhere racism of the Enterprise crew to be wildly out of character and simply put in their mouths so the movie could get its message across. It's actually pretty awkward.
I don't. They were having the status quo that they lived with their whole lives challenged.
um, right but you don't have to conflate political disagreements into racism toward a group. The fact that some Enterprise officers may have been wary of a too-generous peace settlement with the Klingons would have nothing to do with their expression of racism TOWARD Klingons as such.
for example, a Cold War "hardliner" didn't necessarily have to be racist against Russians just because they might not have trusted Soviet leadership.
And further, we had heard little of these sentiments out of the crew before. Then, because the movie wanted to make a point about prejudice, practically every Enterprise crewmember is suddenly spouting racist remarks left and right.