I would assume most outcomes depend on the exact scenario, not just being sued for that reason.

They’re probably just looking for an insurance settlement. Regardless, you’ll need to speak with a business lawyer about your specific situation and circumstances.

We did have a family friend who sued (a large corporate business) for discrimination. He had email records from an ally at HR that included some pretty blatant language that layoffs were determined by race and gender. He also had some objectively awarded company accolades for performance in that calendar year that disproved their blanket claim that layoffs were “performance motivated”. He sued for seven figures and got settled out of court for six. I say this to illustrate that your situation is really going to depend on how much tangible proof they have and only an attorney can advise you on that.