The goal of all of these terms, including things that may not be "enforceable" (I have no idea if such applies to anything in this contract) is to scare people

The goal of all of these terms, including things that may not be "enforceable" (I have no idea if such applies to anything in this contract) is to scare people away from even trying: there's the threat of not just of legal costs for your own goal, but the threat of having to pay your lawyers to defend against malicious conduct by the company, and even the fear of being made liable for their legal expenses. It doesn't matter how plausible any of that is, the entire goal is intimidation. Never forget: your employer - and their HR department - are never your friend, no matter what claims they make. Including claims that HR is there to help you, that you're a "family", etc.