Should Congress establish rules for painting all the houses in America? Should it approve a list of acceptable house colors? Should it specify how often houses should be painted? The qualifications necessary to be a house painter? How much a painter can charge for painting your house? Should it collect taxes to ensure that everyone has access to affordable house painting?
If you don't trust Congress to write rules about something as mundane as painting houses, why would you trust them with something so important and complex as health care?