I am aware of what it is, which is why I asked if it was legal.

is it too much of a problem to ask a question on a legal forum, without racist connotations thrown at me?

Like maybe you could, not assume my race? It sounds like you have a discriminatory problem yourself. Which brings me to their Instagram and Facebook, which they use to bully people who accuse them of the discriminatory practice...

1, it is denying its service based on race
2. It is an index based on owners race, which is public, and can be used for good and bad
3. Someone is going to get ruled by their decision making process as "not black enough". For example, if I was a sous chef aiming at opening a food truck. How black do i have to be? Do I have to submit genealogy tests? My family ancestry? Will I get removed if I am deemed "not black enough"?
4. Next we have the facebook and instagram pages, where they ridicule and shame anyone who calls the practice discriminatory (which sounds like a bill of rights chap 203 violation to me) as accusers cant be subjected to cyber bullying over a discriminatory practice.
5. This service provides a discriminatorily filtered list, of businesses that are listed under chapter 201.

In my eyes, things like this are a step BACKWARDS in the ways of civil rights and equality. And it all seems to be fueled by the algorithms in facebook news feed creating an echo chamber where it reinforces what your beliefs are based on your likes.