Did you look at the effects of GMOs in most of our food as being one more impact on top of the vaccines? As the body see GMO food as foreign, I would imagine that it mounts an immune response to it. BT toxin in corn causes leaky gut, so then food is escaping the digestive system and going into the body, causing an immune response. Some people have found that after taking out all GMO food, they saw a difference in their child. And also the genetic changes from eating those foods are passed to their children, so maybe that’s affecting the baby in utero as the mother eats GMO foods. Maybe that causes the mom’s immune system to be activated during pregnancy, starting that process you talked about in the fetus. Here’s good info about what GMOs do to the body.
https://youtu.be/OqrtUC-6gj4