What are you talking about? Most altcoins are in green as well. This is something really different unlike 2017. With many crypto adoption and news about big companies this is really something good for the whole market. Of course, btc will dominate the market.
Only the top coins green but the other coins in the top 200 are turning red. Actually this market is showing very strong price increases but it only focuses on Bitcoin because today this coin value has increased by more than $10,400 in a very short time and BTC holders are feeling very happy in this time period. Now is the time for big change and if you want to make a higher profit then choose the new altcoin available in this market.