Okay, first of all...LGBTQ+ people have "extra protection" in place? Please, tell that to all the people who have been denied service or fired from their job solely because of their sexuality, the transgender people who are accused of being rapists just for wanting to use the bathroom that best matches their gender identity, and all the young people who aren't accepted by their family simply because of the way they were born. They don't have more rights than straight people. They don't even have equal rights.
Second, what you said about the Constitution is not true, both citizens and non-citizens are protected. It says that NO PERSON shall be deprived of life, liberty or property without due process of law. And even if they WEREN'T protected under the Constitution, my point is that it's hypocritical to say "All Lives Matter" if you don't truly believe that all lives matter .