It's not gatekeeping. Sure, you can call yourself whatever you want but, if what you call yourself doesn't accurately reflect the expectations of others, your

It's not gatekeeping. Sure, you can call yourself whatever you want but, if what you call yourself doesn't accurately reflect the expectations of others, your title means nothing and people aren't obligated to respect it. If someone doesn't want to be perceived as a douchebag, then their alternatives are to not be deceptive to people or to learn the skills to earn the title.