There is wisdom that has accumulated over the ages.  Homosexuality has been condemned for almost all of human history, across all religions and cultures.  That's not something that should be taken likely.  Of course not all opinions have value, but longevity of belief is a good barometer worthy of consideration.  All of those exceptions to permitted "authentic self" that you mention are also based on long-held understandings.  

Indeed, such prohibitions, including homosexual acts, have been adopted by governments the world over, with reversals of prohibitions on sodomy created only in the last 14 years or so.  Nothing has changed to make homosexuality or any of those exceptions worthy of acceptable status, except for badgering by those afflicted with same-sex attraction who refuse to agree with the wisdom over the ages.

Doing what one feels is nothing new, whether it's the adoption of homosexual acts as an identity or any other feel-good act.  It's as old as man himself.