Like every single other issue that liberals champion, when someone throws legitimate criticism their way - criticism that sinks their cause, or cannot be addressed - the default position is that of calling the other side "racists". This is a staple of liberal stratagem. Merriam-Webster needs to formally amend a couple of definitions due to this change in English language usage:
racist - n. 1. Any person who disagrees with a liberal. 2. See BIGOT Example: Sally said rent ceilings create shortages, she must be a racist.
bigot - n. 1. Any person who disagrees with a liberal. 2. See RACIST Example: Fred said that the science behind anthropogenic global warming wasn't settled, he must be a bigot.