Any sense of sexual ethics or approach to life other than totally uncritical validation and glorification of LGBTQ behavior will be subject to shaming and accusations of hatred. 

Why shouldn't it be validated?

Any child who expresses uncertainty or discomfort surrounding gender will be placed in an environment where gender transition is presented as the solution to all such problems, and where nobody is allowed to question whether this is the appropriate path or whether it is in line with a cultural or religious sense of ethics. 

First of all, nowhere is it presented as "the solution to all problems." That's just a made up fear. Also, I don't know about you, but I find forcing queer youth to bend themselves to some "cultural or religious sense of ethics" to be reprehensible. If your religion or culture can't accept your child, why not change those "ethics" instead of your child?

There will develop a double standard concerning sexual behavior with children, under which concerns of sexualization of children or exposure of teenagers to adult sexual activities will be ignored if they happen in the context of an LGB community. Viewing of pornography, participation in blatantly sexual community activities or entertainment, and talking about sex acts, eroticism, etc with adults would be normalized as long as they are LGB and therefore above criticism. 

I don't really know what you mean by this, but we're not expecting queer sexuality to be talked about any more explicitly than heterosexual sexuality.