Evil doesn't have just one face. This is where the tale of 'Legion' comes from. Of course it is often true that defining Evil is not a slam dunk, given the same shifting that goes on around manufactured convenient evils and good where no good can be found. In some cases, however... The term, Evil, most surely does apply as in the case of this creature from The Pit.
In some cases it is clear cut; Little Georgie Sorrows is Evil, if one said that the destruction of our culture is Evil and Soros was a prime mover in that regard, he would be defined as Evil. He does not want to destroy only America. He wants to destroy Europe as well and has invested hundreds of millions of dollars to this end. It is likely he wants to destroy the whole world; if only he would destroy himself first (sigh).
Sometimes it is not so clear cut. These days people are told they can be anyone they want to be and that they have the right to live their own truth. First off, people cannot be anyone they want to be and there is no such thing as a personal truth, unless Truth is not truth... unless Truth is anything anyone wants to say it is and... how can that be?