They are looking for their identity and in their zeal to assert themselves they might go a bit overboard. They will settle down or will mingle in the society as the society is becoming more tolerant to their views. They have their opions and its upto them to share their views with the rest of their world.
It's the same with people planning a wedding or renovating a house. It becomes the focus of every conversation.
It is always the best to have some empathy for people, they are not doing this because they want to harm others, they simply feel that way. I am straight, yet I do not see the right or authority in me to in any way harm/criticize/judge the way people decide to live their lives in this world in the time given to us.