An Amish Riddle

Here are some interesting claims about the Amish:

https://www.globalresearch.ca/comprehensive-study-there-zero-amish-kids-suffering-from-cancer-diabetes-or-autism-why-is-that/5825339

If these claims are true, could it be they thrive because they do not participate in the US "healthcare" system and/or because they don't eat GMO or pesticide/fertilizer contaminated food like the rest of us?

Hmmm ...