I'm not convinced that your assumption that they are a very small portion of the population holds up, but I only have the same anecdotal evidence you likely have.

Yes it's anecdotal for specific statements, but I'm roughly basing my statement on surveys like this one: https://www.nbcnews.com/politics/politics-news/poll-are-sati...

I find it hard to believe that people who would like to seek care but are unable to do so because of limits on their existing coverage would say that they are satisfied with their medical insurance.