And when the solution to the next unfavorable situation he faces involves railroading you? Liars lie and cheaters cheat. You might be fine if you're never their target, but you never know when you will be.

Well said. These types of people are driven by an extreme arrogance that manifests itself as the justification for any bad behavior. Ultimately they believe they are always right, so if they have to lie in order to get you fired, that's fine, because clearly your crazy ideas are a threat to everyone's livelihood, and it would just be better for everyone if you were gone from the office, they just don't know it yet, but I have a knack for these things that others seem to lack, so I'll take it upon myself to engineer your firing.

The companies they're applying to are engaged in behavior that is just as bad, so these "catfishers" are just creatively adapting to the unfavorable situation that employers have collectively created.

You're right. Still wouldn't hire them.

Exactly this. You have to be very naive and sheltered to not recognize this as being the case.

Such people make the homework, research well and then user result to blame you for their fault exactly when you cant defend yourself or claim your achievements for themselves.

That sort of behavior can be pretty poisonous for whole team.

You are either trolling or incredibly naive. Nothing good will come of working with someone like this.

EDIT: someone that spends that much effort lying has a good chance of being a sociopath.