In France it is straight illegal to refuse to sell to a customer without a legitimate reason. Whether a reason is legitimate is up to court interpretation but not liking the skin color or sexual orientation would not qualify. A racist tattoo at a shoot range would probably.

And it doesn't cause any trouble. B2B is not concerned obviously.

As far as possible.

Of course companies have to offer products to minorities, have you ever seen parking spots for handicapped people in the mall?

Of course a restaurant has to ask you if you have some intolerance before serving you food that could contain allergens.

USA Better start to learn that 300 millions people don't make the entire world.