The NFL could have prevented this. Honestly, any competent employer would have. Employees do not have the right to alienate a business customer base, damaging the business that employs them. As an owner, you can respect your employees First Amendment rights without destroying your business. In fact, it could be argued that you are obligated to do so in defense of your other employees - who count on the jobs and incomes you provide - not to mention the investments your shareholders, franchisees or, in this case, team owners all make to build, operate and acquire these businesses.
I ran the company that owns the Carls Jr. and Hardees restaurant chains for almost 17 years. Along with our franchisees, we employed about 75,000 Americans and we...
The NFL is now a progressive left wing organization. They do not want to prevent this. Just camouflage it better.