Why not? China banned the bitcoin, But maybe another country will take the place of China. Maybe it will Japan, USA or Uk. So we will see in the future who will it. But I am sure that btc will reach 5000$ without china but it will need time.
First of all with or without china bitcoin prices may go both ways low or high. Secondly yes there are lots more countries which seem to have been supportive of bitcoin and there are more people in those countries who are interested in bitcoin and buying it so China isn't the only country which can influence bitcoin prices adversely or favorably. Bitcoin will reach 5k mark soon and the poor Chinese people will be feeling deprived.