It sucks that you have shitty parents but consider this a lesson on relationships with individuals with poor money management.

I'm sure this won't be the first time or the last time your parents will try to take advantage of you and your things to make up for their poor ability to manage money.

I'd encourage you to call the credit bureaus (if in America) and put a freeze/block on opening new loans.

And remember that if someone is asking you to co-sign/pawn stuff/ open a joint account/ take financial responsibility for them, ask yourself what poor money decision has lead to them getting into this situation in the first place and are you willing to accept the consequences when things don't go as planned.

Source (I have parents with a low ability to be financially responsible).