So here's the thing. You seem to be taking your anecdotal correlations that you've come across and implying that they indicate some kind of causation when it comes to homosexuality. I'm sorry, that dog just don't hunt, on a couple levels. 1, your anecdotes have not been reproduced in peer-reviewed research, and 2, correlation is not causation.
As far as LGBTQ kids not being as close with their same-sex parent goes, let's think of a reason why that might be. LGBTQ kids are often gender-nonconforming in their affect, behaviors, interests, etc. So it makes some sense that they would not have as close a relationship with a cis/straight same-sex parent, because the parent doesn't know how to relate to them. But that indicates that the queerness caused the lack of closeness, rather than the lack of closeness causing the queerness. See the difference?
I suspect you don't mean to come off this way, but that is deeply condescending to gay people. You really think I'm gay because I believe women have "coodies?" Seriously? You don't think gay people are smart or mature enough to distinguish lack of sexual attraction from prepubescent coodie fears? If you want me to believe you actually respect us as human beings, ridiculous assertions like this really don't help your case.
I suspect that the bulk of gay people you've met who say things like that are likely Christians or were raised Christians. Christianity (the conservative varieties, anyway) drill into our heads from as early as we can remember that being gay is something unnatural, shameful, sinful, disgusting, dangerous, a sign of spiritual deficiency, fill-in-your-favorite-negative-adjective-here. It's quite difficult to free oneself from that indoctrination, even years after one has walked away, even if intellectually one understands it doesn't make sense.
Again, there is no peer-reviewed scientific evidence that homosexuality is caused by a "wound." Homosexuality is just a natural variant of being human. It has occurred across cultures, across religions, across time, dating back millennia.
You're welcome.