I think this completely falls apart because most of the women who give birth identify as mothers, and would be very offended if you told them they couldn't.
I wish there was more pushback against this insanity. I've also seen people want to erase the word "blindspot" from the dictionary... Even though I'm sure no blind person was ever offended by it, because that word typically is used to refer to the limits of people who aren't blind.
English has such a rich array of word choices for many parental situations, with many subtle variations conveying tone and meaning. MW has roughly 83 synonyms including both noun and verb forms, just for mother. I don't see how choosing any one of them for my particular situation will detract from anyone else's identity or journey: they are free to chose as well. Unless your tool bans 82 of them.
That can't possibly be true. If nothing else, it's erasure of adoptive parents, or mothers who didn't give birth, among which gay married couples are overrepresented. I realize there is infighting and factionalism even within minority communities, but come on, this stuff doesn't ring true. I've never heard someone called a birthing person outside of a joke.
For what it's worth, in support of the original comment's claim, I just dug around the Pixelbook documentation all over the place and I can't find any mention of the motherboard. But it doesn't seem they renamed it to "mainboard" or "birthing person board." They just dropped it from the specification completely and don't tell you anything about what kind of motherboard you're getting.
Think of that what you will.