Why wait until they fire, sue them while still employed. Get an exemption (religious or medical), sue for discrimination, it'll force the company to either make accommodations for those with exemtions, drop the vaxx requirement altogether, or fire them and then you can add retaliatory firing to your lawsuit. I'm not a lawyer, seek legal advice from a employee rights/EEOC attorney.
Why wait until they fire, sue them while still employed. Get an exemption (religious or medical), sue for discrimination, it'll force the company to either make accommodations for those with exemtions, drop the vaxx requirement altogether, or fire them and then you can add retaliatory firing to your lawsuit. I'm not a lawyer, seek legal advice from a employee rights/EEOC attorney.