That franchisee is about to lose it all. McD Corporate isn’t going to like their brand being associated with politics in either direction. This type of stunt is likely prohibited by his franchise agreement. Of course the franchisee, being a Trumper, will whine about how he’s being persecuted for his beliefs.
After the mass deportations, all of the most fervent deportation enthusiasts should be required to work in the fields to compensate for the depleted agricultural sector.