You see it starkly in human behaviour. Take a nice, suburban middle-aged woman as an example. She is quite honest and caring about people and is always ready to help others. Place her in a public area next to a scruffy, dirty youth. Watch how she reacts. I have seen this a few times at airports and metros. The otherwise quite nice lady, will be abhorred by the disagreeable presence next to her, and wants to get away, so long as it is not construed as being rude. In the time of Trumpism, nothing is considered rude (that filter has been taken away), so more than likely the lady will change seats.
Why? Because she is now judging and rejecting the presence which is contrary to her image of comfort zone. But has the young scruffy person done someone any harm, has he committed a crime? No! That is what prejudice is. Expand it further and it becomes racialism and sectarianism. Take it a bit further, it leads to death and destruction. Notice the coloured guys who are regularly shot by police in USA, simply on racial profiling. Normally, these police personnel would sit and eat with them, but under stress they can behave like narrow hateful beings when confronted with the out of the ordinary.
Do not be surprised that suddenly prejudice is appearing in droves in apparently very enlightened societies. The seed had always been present. But it had not been watered for several decades. Today its been watered and prepared to come out and so it is visible in tens of millions. It is going to appear more, because the genie is out of the bottle now. It takes a small time for society to deteriorate, but it can take decades to put them back on the right path again.
Similar events happened some 100 years ago and it took much death and destruction to control it. I hope this time humans find a saner and more peaceful way to put humanity back where it should be. Though my reality says it will be a long rocky road. Sadly!
