Exactly. Once you start to allow grey thinking next thing you know some fascist is suggesting that orangeman may not be that bad and that is something we can't have.
"A slippery slope; and so it all began..."
Ironically, dismissing any criticism of Trump as simply this knee-jerk reaction, the people using this phrase quite often make the same mistake they are trying to accuse others of.
but this depends merely on the prioritization of the factors that is assigned.
People who are benefited to an extent by Trump's impact/policies/actions have him at a light grey.
The next thing it leads to is a demonization of the group in light grey by the group in dark grey - instead of white and black.
why not the groups just agree to disagree and move on?