Ouch, funny, but not funny!
Turdle is right, take it easy and it shouldn't be too big of a problem to remove them. That's a lot of corrosion, likely those are original plugs.
That's the negative of using the last forever plugs, the tips might, but leaving a plug in so long makes it way way harder to remove. I prefer to change plugs before 50k no matter what magic plugs they are. I'd rather spend $25 and 45 minutes of labor, once every few years, than to have to one time fight one plug.
That being said, I just bought a 92 Lincoln, with 52k miles on it, and I think the plugs are originals. I haven't driven it since bringing it home, I bought many things like the plugs and wires, I'm doing front suspension bits right now.