Businesses take political and religious actions all the time.
Hobby Lobby refused to pay for any health insurance plan that covered contraception because they believed them to be abortifacients and contrary to the christian values of the corporation.
The difference today is that now it is employees rather than owners pushing for a certain stance.
This is rather an argument why not the employer, but the employee should pay for the health coverage. As they say in Germany:
"Wer zahlt, schafft an."
("who pays, commands", where the verb "anschaffen" (which I translate with "command" here) has the undertone of "giving sexual orders to a prostitute that she has to follow")
Nobody's claiming that work is completely unrelated to religion or politics. That's just the inverse of the stupid claim that because work sometimes involves those things, we might as well do them as much as we want.
Hobby Lobby filed the lawsuit that they are famous for. And they won the case? What an ignorant reply.