According to sayid sistani it’s permissible for someone to become a transgender, so if someone who is 100% sure he is homo, should he/she become a tran?

Permissibility of gender reassignment according to Sayyid Sistani rests on being able to change both the external and internal sex organs such that the person truly becomes the other sex. The justification for doing so is complex and very strict. It would require appropriate consultation with the religious authority