But I shouldn't be forced to hire them or make them my friends.
No one is forcing you to make anyone your friend.
Commerce, on the other hand, by its nature involves the state. (At least beyond the trivial. Your lemonade stand generally flies under the radar here.)
If you want the state to issue a charter for your corporation or register your partnership, if you want to call the cops to use force against people your want removed from your place of business, if you want the government to enforce your business contracts, if you want to engage in interstate commerce and use the economic infrastructure that the state has created, you don't get to complain that the state is interfering with your "private choices" when it requires that your business not be racist, sexist, etc.