The stranded motorist thing was just an example. It not about whether they would because of being the predominant race in a certain town or neighborhood its about that the example i gave happened that way and in many other ways leading up to the discrimination laws that have been passed.
Let's assume, for a second, that your example is proof that discrimination laws were needed. I assert that a discrimination law wouldn't be of any practical help: if a
whole community wouldn't provide help to a stranded motorist on racist grounds a law wouldn't make any difference: they wouldn't provide the assistance, and if the motorist ever made it to another less racist city and tried to hold them accountable under the law, the whole community would lie.
Is this a reason
not to pass the law? No, of course not. But it does point out the futility of these kinds of laws.
Mainly you are in a fantasy world right now. This is what i said: "If it wasn't a problem to begin with i don't think a law would have been created to counter it."
Where do i say or directly infer in that sentence "laws are ONLY passed when there are problems to be addressed"
You wrote: "
if not X then Y". I agree that you can't go from that to "Y, therefore not X" (it's a logical fallacy, called "affirming the consequent") but in this particular case you certainly seemed to suggest that you believe that the fact that these laws were passed is proof that were was a problem to be addressed. If you don't, then on what ground do you think such laws are needed?
I assert now, that you are living in a fantasy world on this forum where you accuse people of saying things they didn't say. 
As long as I have 25" pythons in your fantasy world, then I'm good.
It makes sense with most business owners of course. Most business owners are not racist to the point they would not sell to certain races if given the opportunity to do so. But some are, or were anyway. Also there are many instances where there wouldn't be the availability or prudence to "SIMPLY" open up a competing store. There would be many reasons for this and too much to just explain here. The fact that you would just think it would be that "simple" suggests you don't have much experience in business. Here's a question that may help: Why is there not a walgreens or McDaonalds in every town in America?
Whether there is a McDonalds or a Walgreens in every town in the U.S. is irrelevant but I grant you that there aren't. Let's assume that we have Smalltown, U.S.A.: an everyday small town, not unlike the thousands of others, except that all the people living there are racists - let's assume they aren't violent, since that gets us in a whole 'nother discussion - and that one day a new guy moves into town. We'll call him Larry. So Larry happily moves into town and is all excited. He goes to the local grocery store to get some food, but the local grocery store won't sell him food, because the owner doesn't serve "his kind." He then goes to the restaurant, but again, he can't get any service. Soon Larry realizes that everyone else living in town is profoundly racist and that he will not be able to acquire basic items like food, gasoline and the like.
Do you
really believe that a law that forces the racist occupants of Smalltown to do business with Larry will help him and that it's in his best interest? I would suggest that rather than legally punishing the racist occupants of Smalltown, we (collectively) are better off to let that shit-hole of a town slowly wither away and fade into the pages of history.
I don't think you understand my point. We have laws because we don't, as a whole, always choose to do the right thing.
You changed things a bit. So we know what the right thing to do is, but we, individually, don't always do it. That's a bit of a truism, so there's not much to say on that. But there is an important question that's related to this, which you are skipping: is a law the correct approach and the way to solve this problem? More importantly, is it even a problem?
I don't know if its a problem at all now because of present day laws. Pretty sure its not. I am sure it wasn't a wide spread problem before the laws. But without the laws, it did occur, with some business refusing to sell to certain races and those people having limited choices.
To reuse your example: McDonalds isn't in every town in the U.S. and the people that in a town without a McDonalds have limited choices. Should a law be passed mandating that McDonalds operate a store in every town in America to ensure that American consumers have choices?
