She didn't say anything homophobic, she said men aren't mothers.
Mother is an important term that is tied to child safeguarding.
Men are not mothers so she was just stating a fact.
This is why the T needs to be coupled with the LGB. Without drawing on the harms caused to lesbian and gay people the argument can't be made.
Owen needs to rewrite his article, leave out any reference to LGB and make his argument for why men can be mothers if that is something he feels strongly about.
Owen feels women should lose words and spaces and hand them over to men, fine. Make your point lad.