I agree with this, but I suspect the number of people who fit this definition of “real Americans” is actually very small — perhaps 15% of the population at most.
I would say the share of the population that homeschools their kids is a good indicator of just how many “real Americans” there are out there.
I wouldn’t have been a good home schoolteacher. But two of three of my kids turned out great. The other is struggling with issues. I did have to move my daughter to a private school because she was being bullied by hideous ugly girls (my daughter is gorgeous and smart.) But after that she did fine. True I had to get her tutoring in math because the public school in our upper middle-class suburb hadn’t cut the mustard in math, but after that she did fine.