They will gladly tell you that insurance rates have been going up for decades, and having to choose new doctors is something all grownups have to do on a regular basis.
And in addition, if they've paid any attention, they will also tell him that the rates have increased both before and after the passage of the ACA because of government.
I dunno about *your* parents, but mine saw the same doctor for decades, until he retired. Because government made it more attractive for him to retire rather than to keep his practice open.
But hey, let's give government even more of people's hard-earned money and even more control over everything!
"Thank you Sir, may I have another?"
"Idiocracy" was a documentary. Slashdot posters prove it every day.