Yes, I think so. I remember an article once which looked like it had sound research but the interpretation sparked an angry debate as it implied that women who reduced their oxytocin levels by choosing pain relief or anything other than a totally natural drug free birth caused their child's autism.
I would not be surprised if the interference and imo the barbaric way we are expected to give birth in 1st world countries truly did have some impact on the way a baby's brain subsequently developed, nor would I be surprised if the chemical cocktail many are forced to take increased the likelihood of a trigger of a genetic predisposition.
Though I would never suggest that ASD could be avoided from a natural drug free birth either. I expect the issue is extremely complex, and that ASD, being only a set of observable behaviours for dx, means that the causes are likely to be multiple or combined.
At a very basic level I cannot imagine that a birth experience horrific enough to cause a chemical imbalance and psychological distress of enough magnitude to affect the woman years later won't have at some level have affected the extremely vulnerable and developing brain.
I don't think researching this would be popular. An investment in maternity services is not going to be a priority for the government. A finding of pharmaceuticals being risky will not be a popular result for drug companies or women who live in a culture where pain relief during birth is seen as a right and real need. I think very few women now in this country experience a truly natural birth, as it is supposed to happen, with maximum oxytocin flooding their systems. The system allows only something that pretends to be that.