Isekai protagonist just don't give a fuck about their parents, huh? it's only the first chapter but I doubt he will cry or mention it... No one does.
Also, if you think about it, I guess the author really wanted to make this genderbend but at the same time he wanted the character to have kids too, I can't think of other reason to make her like this... or maybe if we ask he will say "I just like futas lo/"