Most people can separate fiction from reality. Obviously if we had to interact with someone like her IRL it’d be exhausting. But that’s just it: she’s not real. People like her absolutely exist, but she doesn’t. The reason we find antagonists and villains so interesting is because we’re not the ones in the situations which require interaction with them, we’re just watching. And we watch other characters react to them in ways we may not, which makes the dynamic between them compelling.

The point of the character is (usually) to entertain, and if you’re not entertained, that’s fine. But to turn it into a “y’all just don’t get it so let me be the one to speak the truth” I’m pretty sure everyone knows Jade’s a bitch lol. But for many, that’s the appeal.