People can do both,right? There are not only tons of EPL and La Liga fans in America, but also in Africa, Asia, and Australia. There are also tons of NBA fans in Europe. Many, if not most, of which follow teams. Are they wrong themselves for following an American basketball team? Because it's easily the best most popular and best basketball league in the world.
Also, me personally, I find the system of the European leagues better. I like the promotion/relegation thing. I like how UEFA, Europa leagues. It's just not at that level in America yet.