Until proven otherwise, I assume either ignorance or malicious intentions by those who want to rename these “problematic” terms. It does nothing to improve the actual issues.
The false pretense of having done something, is worse than doing nothing. It’s just noise.
To be clear: I don’t mind the changing of terms. I’m too old to care about trivial stuff like main vs master. But if the reasoning for such a change is dumb and potentially harmful, you’ve lost my respect.