Interesting discussion, here. There is merit to both sides.
On the one hand, it is very easy to dismiss things that we simply "don't like" as "evil", even when we have no good reason to dislike other than unfamiliarity. That is definitely a common category error.
So that leaves us with either, "there is no such thing as evil," or "there is such a thing as evil." Is "evil" a legitimate category?
I believe it is a legitimate category, though it's often abused. Abusing the concept of "evil" is like bringing up Hitler and "Godwining" a thread:
I believe it is just as facile to deny that evil exists. Many are tempted to do so, however, perhaps because the concept gets abused so often, where "evil" is used to justify a merely personal opinion.
But as Rex points out, that murder is evil isn't merely a personal opinion, it's about as an objective moral fact as a value can be: it's held by nearly everyone, and we as a society tend to treat those who act on a "different belief system" (by committing murders) very harshly. The point of describing something as "evil" is to indicate that it is almost always obviously wrong in just about every imaginable circumstance.
We can come up with moral dichotomies, of course, like the trolley problem:
But in these cases, the dichotomy usually plays on the fact that both results are obviously "evil" to some degree. The trolley problem, in fact, plays on the dichotomy of whether it's OK to
choose to kill the one person rather than let the trolley kill five people (through inaction). Many people will decide that it is better to let the 5 people die rather than to choose which set of people dies, while the rest will think that it's obviously better to save the five people at the cost of the one person.
My point is, the dichotomy wouldn't even work if there were no legitimate concept of "evil" that is beyond personal opinion.
In the case of the OP, the use of the word "evil" is a bit on the dramatic side. I doubt that Oro is seeing true evil, but that she is seeing a dark side of the ENFP type, the side that isn't about sprinkling rainbow glitter and handing out boxes of kittens:
As the video points out, even handing out boxes of kittens has undesirable side effects. The real focus of the thread is on how even the best of intentions can eventually lead one to make choices that most people would regard as wrong, perhaps even evil. That's really kind of a shock for an ENFP, who naturally regards themselves as being good to people, to realize that they're treating some people very badly, just because their ideals are being thwarted.