and realised that basically, the entire joke is that Sheldon has Asperger's.

Like 100% textbook case.

Once you look at it like that, it's not really funny anymore and actually quite cruel.

Haha, he has multiple OCDs. Haha, he needs a strict routine to live. Haha, he likes science and can't relate to girls. Haha, he doesn't enjoy physical contact. Haha, he's got a learning disability that presents challenges on a daily basis for him to live in a world that can be confusing and difficult to relate to. Haha!

Topical: Susan Boyle has been diagnosed with Asperger's.