Not much you can do except repaint the hatch. It's not recommended to try to "fix" and reclearcoat. But you're not just losing the clearcoat, you are also losing the basecoat.
There was a thread on this a month or so ago. Even putting on a vinyl wrap was discussed. Might try searching for it.
My suggestion is to take it to a body shop and get some professional advice. Advice is free and you can talk to them about any "options".
Take a guess who is the poor schmuck who bought a 4Runner with literally zero clear coat left, about three years after that post.The only way that would come out perfect would be to give it to a body shop. Once the clear peels you can't do anything about it. I've heard of some using rattle can clear as a cheap fix but if you're like me, the thought of spraying a $5 can of paint from an auto store onto your truck's bodywork is kinda scary.
I would wax over it and leave it alone until you can properly get it done.
Take a guess who is the poor schmuck who bought a 4Runner with literally zero clear coat left, about three years after that post.
God what a dummy that dude must be
I know, but he told me that it was an e-locker SR5 with a blue leather interior. Apparently too rare for him to pass up at $600. He even blew up that e-locker diff the following year. All in all he says it was a solid deal, even if it does now require extensive rust repair on the body.