So many knights; so many stories of better times. Well no, not better just easier to fathom. You have a deadly dragon and you are a knight who has taken an oath and off you go. Evil this, good that. The world is not like that there are very few instances of good and very few instances of evil. But there is an awful lot of grey around.
Perhaps that is why people are motivated to world views that do not permit of any or very little lassitude from the accepted permissions. It is much easier in an ethically foggy situation to default to a world-view that is so rigid grey actually becomes black and white. It doesn’t matter that those of us who live in the grey think those who makes such a colour change are themselves ethically suspect, because to them we are outside the given permissions. In fact we come up as bright scarlet markers in this black and white world.
We don’t have any knights anymore and just as well. The stories are not the reality for we now know there never were any dragons, or trolls or wizen hags in the marsh eating children. There were just people. There are always just people and just as we have become colour-blind for the betterment of society and ourselves, we need to allow our ethics to live in the grey, as Excalibur did because ethics is all about choices and choices have millions of colours.