Gem, I don't think anyone is out to take down your thoughtful points, and absolutely, you seem like a mother with a lot of heart for her son. I admire that, and I think he's a lucky guy.
I do think you might be a little emotionally connected to this discussion, and therefore missing some of the points people are making.
You keep saying "read the posts" but your points--the points you're bringing up--hinge on the idea of dyslexia being a disability. This is why people are frustrating you, and why a lot of people have left the discussion.