IMO there's an ongoing battle between two very different concepts of what speech means.
1. I speak "X" because I believe X to be true. I am virtuous because I am correct, and honest.
2. I speak "X" because that is is the current signal for demonstrating loyalty in the in-group. I am virtuous because I demonstrate allegiance and membership.
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In the first case, you apologize for an error because it's how you get back to a state of being correct. (Or if you don't apologize, it's because you double-down and insist it isn't an error.)
In the second case, you don't apologize because the "error" was merely a strategic misstep of over-triggering the dirty out-group, and anyway caring about them too much is suspicious.
1. I speak "X" because I believe X to be true. I am virtuous because I am correct, and honest.
2. I speak "X" because that is is the current signal for demonstrating loyalty in the in-group. I am virtuous because I demonstrate allegiance and membership.
_____
In the first case, you apologize for an error because it's how you get back to a state of being correct. (Or if you don't apologize, it's because you double-down and insist it isn't an error.)
In the second case, you don't apologize because the "error" was merely a strategic misstep of over-triggering the dirty out-group, and anyway caring about them too much is suspicious.