I don't think there's anything necessarily wrong with shipping same-sex pairings with child characters, since gay kids exist and get puppy love crushes just like straight ones. It's just that doing any sexual stuff involving child characters is pretty grody and you absolutely need to hide it behind a fuckton of content warnings.
I'm all for people doing whatever with fiction as long as it doesn't hurt real people, but some subject matter is stuff lots of people find gross or upsetting and needs a content warning. Sexualization of child characters is one of them.
It feels like there are sleazy Japanese loli/shota artists that do a better job of warning/hiding their gross shit than Neth does.
Doesn't Neth accuse anyone that tells her to cool it with her gross lolicon of being a homophobe?