First of all, if the staff stayed rather than seeking employment elsewhere, what gripe does anybody have? None.
Second, ALL the money ALWAYS comes 100% from the customer.
Dont miss my original point. I have no problem with paying for a meal including a service charge. Just dont try to tell me it is a gratuity when its not. The business should tell the truth. It is a service charge and is included in the overall price of the meal and is how the business pays the server.