Moved to competing. I think it's best suited there.
Now, on to your issue... It's your opinion about the coaches tactics and, while you may be right, you have to recognize his position. He is the coach. While you might impress other players, you might not be impressing him, and he is the one who makes the decision about whether or not you play. tbh, I can think of very few 14 year olds who would start for a JV team, regardless of skill unless you are the very best talent around. It's a question of maturity, game mentality and physical development. Perhaps the coach does recognize you as a talent, but is unwilling to slot you into the team right away because you lack one of these things. All you can do is keep trying to improve, and take it upon yourself to show him you truly belong. Michael Jordan didn't make his junior varsity team either.
I think you should continue trying to impress the coach, personally. Get someone objective, or perhaps even the coach, to tell you where your biggest weaknesses lie, and work super hard on bringing them up to the level of your strengths. When he sees your dedication, and the fact that you were loyal and tried to make it work, he should be very impressed.
As for opportunities in America, well, I am Canadian, so I don't have answers for you there. I bet AFC08 is the one to ask.
Just send out a beacon, or something.