BTC over 11500 USD

I have almost 2 years in the world of crypto coins and I am not an expert in the subject, in fact they are Steem and SBD the only ones that I use, however I believe that I arrive in the historical moment of crypto coins.

Then it touched me to see how they all collapsed and now I am seeing how they rise again but I notice something that worries me and I would like that if possible some expert clarify me.

When BTC fell all crypto fell proportionally, in that fall when BTC was close to 11000USD STEEM was close to 2 USD however I noticed that BTC a minimum of 4000USD and steem to a minimum of 0.25USD, however BTC is almost tripling that minimum value while steem has not even doubled it.

My logic is that if BTC goes up STEEM should do it proportionally as it was in the fall, because if BTC goes up a lot and the others do not, a next BTC fall could mean the extinction of many cryptomonedas.