It’s not that you don’t have a case. I pass absolutely no judgement from that perspective.
But rather, unless you are stupendously lucky at finding the perfect lawyer who is not only supremely talented, but also willing to take on the case more for the principle of the matter than any remuneration, you will be absolutely buried in minutiae that will absolutely bleed you dry from a legal-fee standpoint.
That is, after all, the favourite tactic of corporations when going after the little guy: to make it prohibitively expensive - likely several times your lifetime income - to mount any sort of a defense. Under that kind of a threat, who aside from the clinically insane or quixotically idealistic would ever stand up against that kind of corporate power? They can and in all likelihood will completely destroy your life and drive you into a lifetime of poverty when they win.
Is it fair? Absolutely not. But that’s why corporations are the tools of the Parasite Class. It allows them to wield a nuclear hammer in the face of whatever nail is irritating them, regardless of how tiny or inconsequential that nail might be.
With that said, others have survived legal assaults from large corporations, and have persevered: https://en.m.wikipedia.org/wiki/Nissan_Motors_v._Nissan_Comp...