So far, only California, New Jersey, and Washington, DC have banned conversion therapy for minors. There are bans pending in other states, but Republicans continue to vote them down -- as happened in Virginia recently. Still, people spoke up, via a petition, and the White House listened. And that, people, is what we call a very good start.
One of the main problems is that many of us don't live around trans people. Growing up, I never had trans people visiting my house. My family doesn't even know any trans people. This invisibility, propagated by the willing and unwitting actions of governments, media and authority figures, perpetuates the isolation of the trans community from mainstream culture.