FWIW this is why job mobility is super important. Both sides of the employee/employer relationship should be relatively unconstrained so that employees can "vote" against bad employer policies.

If your employer is out there making political statements or doing political things that you disagree with you should feel empowered to leave and find a new job. If you don't want employers making political statements or taking controversial political stances then vote for policies that encourage labor mobility so that the labor market can be free.

Unfortunately there are lots of policies and laws in place that prevent this kind of labor mobility and give the employer a huge amount of power.