Two things.
1. Not everybody needs to come out, it is perfectly fine to keep your sexuality to yourself, provided you are not lying to anybody that you plan on being in a relationship or intimate with it.
2. I think a sizeable bit of society was moving toward seeing homosexuality as no big deal and then we all got hit with the rise of Transgenderism and many people could not wrap their heads around things such as "pronouns", "gender identity", "non-binary", men in dress and heels, men (FTM trans) being pregnant or seeing a biological woman get destroyed in MMA, Swimming and track by trannies and that probably halted a lot of progress, socially for the LGBTQ.