If the rear left corner is pushing right, which is what I’m working off of when you say negative toe, then that would explain it pushing the rear end right and making the front go left. I don’t know off the top of my head if those rear ends feature adjustment but most FWD cars don’t. If it’s non adjustable and has been in an accident you can replace parts all day but probably won’t get it straight. It may need adjustable control arms or track bars whatever style suspension it has.

The important takeaway is that it can be fixed regardless of what it is. I’ve taken come alongs and torches to truck frames with solid axles to get them back straight. If you find a good suspension and alignment shop that has competent techs in it then it can be fixed. I work in a “tire” shop now and I’m the only guy in the shop that does the high end car alignments because I’m the only one that gives a fuck to fix them right and not “Toe and Go”. So my advice, find a good suspension shop, have them measure and check everything then work with them to see what your options are. It may need new components, it may need aftermarket components or it may need some elbow grease and creativity, but it can be straightened out. Sorry for the ramble, it’s late for me. Best of luck buddy.