It seems like you're trying to disprove my point by stating something that's only tangentially related.

Yes, there are situations where a business can refuse to do business with me and there's nothing I can do about it.

There are also situations where a business might refuse to do business with me and I can take them to court and force them to do so—if the reason they refused to transact with me was because I fall into a protected class.

Because of this, it is also true that, if they chose to, legislatures could write new laws that require businesses to do business with everyone with a "g" in their name, or everyone with hazel eyes.

Or they could require businesses in certain classes to allow absolutely anyone to transact.

This is especially true with monopolies and other types of market-dominant companies, which very frequently have to operate under more restrictive conditions than other businesses.

Google isn't an all-powerful entity that no laws can touch, as much as they might like to be. Any time you start thinking "nobody can force a business to" something-or-other, remember that laws and regulations exist, and do very much force businesses to do things they otherwise would not choose to do.