They act like it's not okay to be yourself if you are an introvert, or for that matter, if you think society is run by psychopaths and you don't want to be around such icky people. They act like you're only worth the job you can do, and if you want to do something else as your major life focus, somehow that's not good enough.

Which is life-destroying if you rely on those people for your survival needs in any way, as many people do. Either you break yourself trying to please people who despise you on principle, or you go without vital resources.