Earlier quoted context omitted.
Because life sucked for black people in the 60s and they managed to change the law?
I don’t see how that has anything to do with forcing a private institution into serving customers it doesn’t want to. The argument is: Imagine you and a friend have a private tutoring business. You should be able to have the freedom to pick whatever customers you want, your not a slave, your not obligated to provide a service for someone if you don't want to. Over time if there is demand for private tutoring that you…
Just like we require certain minimum wages and environmental laws, disallowing racist behaviour in businesses is just something that the government can and should impose on commerce.