in fact, not price of bitcoin alone has increased in yesterday's bull run, ethereum, litecoin, bitcoin cash and binance coin also follow the movement of bitcoin all coins can go up 2 x from the previous price
I agree with your views, several altcoins are on uptrend like litecoin which having its second halving this coming August. The bnb coin has already reached several all-time highs and will further reach more in the coming days. Newly listed coins like ONE and Matic are also made several gains in the last few days so I believe that many altcoins are also gaining. Majority of the users seem to be focused only on bitcoin uptrend and they did not notice that several altcoins are also going up.