The point is that religion gives these people there wherewithal to justify the unjustifiable. People used religion to justify slavery amongst other things.

If someone can make the case scientifically that being LGBT is somehow detrimental to humanity as a whole then by all means id like to see it.Or anything else for that matter

But if the case against one thing or another is that some supposedly omniscient, omnipotent but elusively invisible entity is whispering only to a chosen few and only they know what is 'right' becuase of those 'whispers; then yes they are the same because they use the same justification - God Said So