Most of the investors are from US so In my opinion bitcoin will be accepted by USA Soon.
Exactly, Bitcoin is even used on USA exchanges more than the others so why wouldn't they officially accept it in the near future to help cut off illegal/black market usage.
Yeah well the majority of bitcoin users are Americans, so Bitcoin is already a major thing in the USA it's just that the government hasn't acknowledged it properly and I don't think the government will make any laws, regarding it anytime soon.