You're attempting to appeal to societal utility when the issue at hand is the dignity and well-being of a small, often marginalized and underrepresented, minority of society. I believe that speaks volumes to heartlessness.

Yes, accommodating these people will cost society more (in terms of effort and money) than not doing so.

However, not accommodating these people comes at a huge cost to our society's legitimacy, reputation, and honour.

I'm not addressing your points because I do not believe they represent a worldview that is worth engaging with.