Yes...if these are suckers cut them all or leave one alone and see first what apple you'll get in a couple of years,..but keep it trimmed down.

TurkeyCreekTrees here is the whole tree

you could air layer the suckers or dig down and see if it has roots and use it to graft a known type onto

Those suckers have definitely taken over the original tree! Were the apples from the tree or the suckers? You can remove the suckers, but I would do so once the tree is dormant again. That is alot of fresh growth to remove now.

The apples were mostly off the original tree. If i take those suckers off am i risking killing the tree? even though the tree was in this state it still produced really good fruit.

Removing the suckers will not directly kill the tree. However, since the suckers make up the vast majority of the "tree" it is better to put those new green leaves to use feeding the root system. The roots have just expended large amounts of energy to green up those suckers. When the tree goes dormant the energy flow is reversed giving the tree the reserves it needs for the next growing cycle. Removing those suckers will likely result in more suckers to start growing.

So would you think if its growing really nice fruit i shoud just treat the sucker as the tree and prune normally. Also i have one out the back thats in the same state But producing terrible fruit. What would you do in this situation?

If the sucker is growing good fruit just leave it. Prune it as you would a normal tree. If the sucker produces horrible fruit or no fruit then cut it and graft something tasty to it.