But if you just stop and look you'll find good people in this fight with you.
This appears to be the sum total of your argument, and doesn't really address his statement of the social contract being broken. Just because some "good" people remain doesn't mean the majority haven't been pushed by the system to something worse.
I'd also like to advise you just how arrogant your statements here are:
And giving up on them is not something I'm going to do ... OP is (imo) misguided, but that doesn't make them a bad person and it doesn't mean they're beyond hope. ... Simply misguided but not even close to being beyond redemption or belief.
So, you think your outlook is so superior that it grants you the authority to not only judge them as misguided but further imply that they are so wrong as to require redemption? Oh, but by the sheer goodness of your heart you still grant them the gift of your hope.
This is called toxic positivity. You are using the notion of positivity in a negative way: it is a tool to assert your moral superiority and thereby belittle others.