That was very amusing.
For people who don't find it funny, perhaps you are missing the point? It is not to say autistic children ruin their parents lives or autistic children are terrible. It is making fun of how people decide having a baby (or getting a pet for that matter) will solve their marital problems.
If this was completely understood and it was not taken as amusing for some other reason, I apologize. 
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While Mr. Kim... has fallen prey to the inexplicable need for human contact, let me step in and assure you that my research will go on uninterrupted, and that social relationships will continue to baffle and repulse me.
- Dr. Sheldon Cooper (TBBT)