No one who is "unvaxxed will be fired". The company will not want the bad press for taking on the US Supreme Court on a 6 to 3 ruling.
It will also open the company up to significant lawsuits, some I imagine will already be starting tomorrow for the nonsense to date.
And you can bet that ANYONE hurt by the Vaxx "That the Company Mandated" will be able to sue Verizon to damages.
There is not a jury in this country that would not side with an injured employee against the company.
Plus you can bet your backside that one the house and senate change as a result of this year's election, many including me, will be pushing Congress to investigate everyone who pushed this Vax inside Verizon.
Save all of your email and paperwork!