Looks like your brakes were stored at the bottom of the ocean!
Mine were like that when I got my car, you need to go full send on the pins, get a decent punch and disregard your knuckles. I ended up cutting mine which made things worse, they REALLY didn't want to come out.
They're in horrific condition, first drive was interesting, or at least trying to stop at a junction was... I've tried a punch but there's no movement at all. Might just go bigger lol