It seems that a big point being missed is that the law prohibits treating people differently if the different treatment is based on certain
protected classes in the law. Under Maryland law:
§20–304 wrote:An owner or operator of a place of public accommodation or an agent or employee of the owner or operator may not refuse, withhold from, or deny to any person any of the accommodations, advantages, facilities, or privileges of the place of public accommodation because of the person’s race, sex, age, color, creed, national origin, marital status, sexual orientation, or disability.
Despite the range being a privately-owned business:
§20–301 wrote:In this subtitle, “place of public accommodation” means:
...
(4) a retail establishment that:
(i) is operated by a public or private entity; and
(ii) offers goods, services, entertainment, recreation, or transportation;
...
As for Augusta and the like:
§20–303 wrote:This subtitle does not apply:
(1) to a private club or other establishment that is not open to the public, except to the extent that the facilities of the private club or other establishment are made available to the customers or patrons of an establishment within the scope of this subtitle;
(2) with respect to sex discrimination, to a facility that is:
(i) uniquely private and personal in nature; and
(ii) designed to accommodate only a particular sex; and
(3) to an establishment providing lodging to transient guests located within a building that:
(i) contains not more than five rooms for rent or hire; and
(ii) is occupied by the proprietor of the establishment as the proprietor’s residence.