Sure, there are always people who will disagree, and there's really nothing we can do about it, as long as they don't act aggressively. In that case, if we are currently working on laws that will protect the LGBT+ community, we also need to work on a penal code that will withhold those who don't comply, responsible for their actions and any discriminatory behavior.
Still on the same topic, sadly there are people who will not comprehend, and that's why we need to work really close with our education system. Seeking to engage and educate our youth on these issues hoping to lead into a well structured, comprehensive, respectful of others, and socially aware group of people that will pass the same values and knowledge from generation to generation. And most importantly, to encourage the fight for human rights.