Even putting aside the issues of being being raised in a household where an aberrant sexuality is presented as the ideal, you'd have to be naive to think that coming to the realisation in your teens that your two "parents" conspired against you to deny you a relationship with one or both of your biological parents is not going to cause psychological problems.
Okay, wow so much wrong with that paragraph. First of all, what makes you assume that gay people would be presenting their gayness as the "ideal"? Perhaps you have witnessed straight households presenting heterosexuality as the ideal, or maybe you present it that way yourself, so you assume that gay households would do the same for gayness. I've never seen this happen... I've never even heard of that happening. Maybe it's possible.. but it doesn't sound like your concern is grounded in you knowing a damn thing about what real gay families are like.
Here is where I'm coming from: I know lots of gay people in real life. I have gay family, gay friends, and most of them have children, either biological or adopted. I may even be a little gay myself, as I've wondered more than a few times if I would be better off a lesbian. I even have a gay ex-husband who happens to the father of my son. I have no clue why my life has been an embarrassment of gay riches... but it has.
The only commonly recurring negative themes I've ever noticed in all of their gay lives are: 1) harassment for being gay, 2) lack of emotional support for their gay relationships.
I have never witnessed anything intrinsically toxic or wrong with two people attracted to each other who happen to have the same plumbing. I have witnessed firsthand, that my gay loved ones have been namecalled, shut out, publically called out, and even physically attacked for being who they are. I can recall specific incidents of harm from the time we were young children to just the other day. These things keep happening to my gay loved ones not because they are gay, but because people like yourself take issue with them being gay. Why do I say that? Because the perpetrators of these harmful acts have invariably been the so-called "champions" of traditional morality.
I seriously doubt you personally know any gay people, because it baffles me these things you are saying. Anecdotal evidence doesn't count for much in an argument, but good lord man... do get out of your shell and mingle a bit!
You leave no room for "proof" that your fears are correct.. you doubt any evidence to the contrary...and you yourself can't cite a single credible source that gay families harm children. Nor do you seem to care that you cannot. So where does this leave us but violently agreeing to disagree?