Looking at that "Tesla sales location" map posted by Low on Cash above it looks to me like the green states ought to be colored blue.
It's not at all surprising. The reason the map is the way it is, is because the "red" states refuse to allow Tesla to do business the way they want to -- direct, without independent dealerships. Tesla believes the independent car dealerships just add layers of profit-seekers between the manufacturer and the customer, drive up the cost to the customer, and don't really add any benefit to the relationship. I happen to agree with them....I can't say I've ever had a pleasant experience at a car dealership in my life. Tesla's model ensures that every customer pays the same price, gets the same product, and receives the same service, whoever they are and wherever they purchase.
It's not a perfect plan; in particular, there are large parts of the country that aren't very close to a Tesla shop, so it's hard providing sales and service in those areas. But Tesla is trying very hard, and they're making progress. If the "red" states would relent and allow Tesla to put showrooms in their areas, it would go a long way to helping the people in those states access Tesla sales and service more easily...but the dealership conglomerates hold too much power in those states, so customers are relegated to transporting their vehicles hundreds of miles to get any service at all. Fortunately Tesla is also very good about fetching inoperable vehicles and providing door-to-door service transportation.
Currently, in most of the states colored red on the map, Tesla has "galleries" rather than "showrooms". They're not legally allowed to sell product, allow test drives or even discuss pricing, but you can go look, discuss the cars and the available options with knowledgeable people (docents?), and of course you can then go home and buy your car online, with Tesla delivering it to you when it's ready.
So the map is underwhelming, but the "red" states have only themselves to blame for having no Tesla dealers. It's not at all as was presented, as if Tesla only wants to sell to liberals in "blue" states. They want to sell to customers wherever they are, and whatever their political beliefs may be.