Yes, that much misalignment will have an effect. It depends on your flying whether or not it's worth the effort to fix it. It probably could be trimmed to fly level, but is going to affect the flight performance. For example, you might wind up with more tendency to tip stall on landing.

You won't be able to reuse the CA hinges. And getting debonder to penetrate like CA penetrates is wishful thinking. So pulling the hinges is going to be a beastly task. Since the hinges are basically already lost, just cut 'em. Place new hinges where the old ones aren't.

There are things to learn about "building" ARFs. You've just run into one of them. Always check where those Chinese sliced in the hinges before gluing. In the last year or so, I think I've built over 16 ARFs and have had to cut new hinge slots on maybe a quarter of them. Usually only one or two surfaces, but why even one?