Give it a rest, and focus on the topic at hand.
Happy now?
I do not know who was doing what in the restaurant.
was it more than mere presence, was there loud and vocal boisterous activity.
I have seen people asked to leave if they did not maintain civil discourse. These were young white people with too much energy or perhaps substances in their system.
perhaps those folks who were asked to leave would do better to not spend their money there. It is a free country and the owners of the restaurant made a decision. Now the offended party and all their friends and like minded folks can make a decision to withhold their business from the owners.