Affluent suburbs + parents who waited to have kids in order to achieve said affluence + IVF to then make those kids possible = many autistic kids.

School districts are seeing their caseloads of autistic kids rise tremendously and the costs to care and educate them are huge (and growing, as these parents are usually educated and savvy and very angry).

The IVF industry is very rich and influential, so very little research is being done in the US to see if there is a causal relationship. Some research is being done in Europe and questions are being raised.

This is a touchy subject.