I don't care what side of the Political Fence you are ridin' on; You Mom Taught you about shopping for a deal, and how to hunt for the Best Deat. And she probably also told you about how some things can only be negotiated, to a price point, like the Dentist, Dr. or Real Estate.
Bottom line is: All are totally negotiable.
I really like my dentist, and have been her patient for about 6 years or so. But, price will prevail, and she has viewed some of the dental work I have received in TJ, MX, and was impressed. By the way, my TJ Mexico dentist lives in San Diego, and is working on being licensed in CA. Most of the folks in her waiting room in TJ were White, and appeared to be USA patients. Certainly, there were many other Mexican /Hispanic looking folks in her waiting room.
I will continue to go to my CA dentisit, because I know I can count on her and her staff to find any flaws in my teeth.
What I can't count on is the best price for having any flaws fixed.
It's why I, and many others are hangin' on a hook, So to Speak.