Refusing to See the Grey is the Achilles Heel of Modern Americans
So what prevents us from recognizing that the cat is gradually becoming a dog? Anti-intellectualism that goes back to pre-Enlightenment times. The battle between religiosity and scientific inquiry has been raging since the atheists and agnostics determined that living in a closed off, black and white binary is the road to authoritarianism. Allow the 'truth' to be dictated by a few and those few will gain and wield enormous power.
How do you want to be defined? By one action? By some opinion that could evolve? By a mistake, regrettable only with hindsight? Or by the sum of your parts? Okay, do that for other people. Start the trend.