This seems like a wilfully unfair description of Chris's position.

It's a scam if you take someone's money intending to do something other than what you tell them you'll do with it, or (maybe) intending to do it for very different reasons from the ones you give them, or with very different prospects of success. But Chris's hypothetical youngster is doing with the money exactly what his/or her parents expect (getting educated), with the same purpose and the same likely outcomes as if s/he were straight. Where's the scam?

And the donors in question aren't generic "people". They're hypothetical-youngster's parents. Maybe that makes it worse ("you'd lie to your own flesh and blood?"), maybe it makes it better (arguably they owe him/her an education, if they can afford it and s/he would genuinely gain from it), but it certainly makes a difference.

I think there is an argument to be made against Chris's position along those lines, but such tendentious language isn't the way to start it.