is today's generation too lgbt+ friendly/supportive?

No, but bigotry and idiocy reign supreme in heads like yours. The vast majority of people regardless of their sexuality, race, etc. want equal rights, or at least they should. Bigots and racists on the other hand wish to have superior rights to the point that they think that only their rights matter and screw everyone who doesn't subscribe to their pathetic beliefs. I also find homophobes and racists to be the people who are most likely religious and hide behind their fake beliefs to try to oppress people, spouting their fake message of love while spreading their real hatred. Treat others as you wish to be treated so the saying goes.

Not necessarily, but there are a lot more supporters. Part of it is due to people realizing no matter what your race, religion or sexuality we all have many similar interests. Unfortunately the othe part is it feels like we're being forced to comply with their beliefs because they are practically shoving it down our throats. 

No, it’s impossible to be too friendly or supportive of something, e.g. LGBT+, that doesn’t exist.

By no means.  There's still a lot of homophobia or transphobia.  

No.  Past generations were far too bigoted and hateful against LGBT+ people, including people rejecting their own family members for something that insignificant.  Today's generation and its growing inclusiveness is society moving in the right direction.

No it needs to be more sex positive, less shameful and insecure.  Good question.

Uh, no? It should be more supportive and less bigoted than it is.

The fact you think "too LGBT friendly" is a valid concept raises a lot of red flags about you.

No such thing.