>>514843671
You have to be adjudicated mentally ill or committed. Troons and Queers lobbied heavily enough that THE SCIENCE! declared them sane and valid. Even then, NICS rarely denies people on meds or even diagnosed with a mental illness (violation of HIPAA). They can only deny you if you already sperged out and did something crazy and got arrested for it.
Even then, NICS is still pretty shitty about denying purchases of crazy people. Many of the most famous mass shooters were all on SSRIs or other medication and stopped taking them shortly before going apeshit.