I can give a link, but it points out the origin of the phrase “chestfeeding” was to be inclusive of…
Siobhan O'leary

Thank you Siobhan! That article was new to me. Of course I read it in full, and of course there’s no indication that trans men (nor anyone else) are asking cis women to change anything about their own words or practices. Just another case of a minority minding its own business, addressing its own problems, giving no actual reason for the more privileged mainstream to point and yell “LOOK! A THREAT TO OUR WAY OF LIFE!”

Argh. What is this glitch in human sociality that makes us do that?