Using absolute across the board lesser investment to dismiss comparative investment is a bit sloppy and a red herring.

The thread you reference is criminality and infanticide, not parental prioritization of kids old enough to be known as gay/trans. I suspect most people don't know if their infant is gay/trans. I also assert there is a difference between prioritizing relationships and resources on a parent to child level and views on what should be illegal.

A gay or trans person probably has as much evolutionary value to society as anyone else, the fallacy you've fallen into from your prior post is to confuse that population level dynamic with the parents drive to pass on their particular genes.

It seems absolutely insane to me that it isn't even possible to consider the parent has an instinct to prioritize relationships and resources with children most likely to reproduce. It seems some want to work hard to make sure it isn't seen as a reasonable hypothesis, because if it were those feelings would be as valid and baked in as homosexual feelings.