I said “most” because I don’t have 100% surity that there are not those who legitimately had to switch to a different insurance plan in some way because of the ACA. But, since you are making the claim, care to clear up the uncertainty? Who actually had to switch to a different doctor because of the ACA, compared to the number of people who had to switch doctors because of health plan changes in previous years?
Just from personal experience, I have had to change doctors because my doctor chose to leave the insurance network of the plan I was on, but that happened in 1999 if I remember correctly, so it is a bit hard to blame that on the ACA. It does happen, but rarely. Most doctors accept insurance from anywhere, and are “in-network” in multiple different major insurance providers. But, of course, that isn’t all.
So, again, if you have any actual data backing up your righteous anger, please share it.