Is BITCOIN pumping all liquidity to ALTS?

BTC

Back in 2017, we could see that ALTS market cap was lagging BTC by the margin of 2-4 weeks. BTC was a defacto currency people would buy first before they get into ALTS however see the correlation in 2019. The lag had disappeared. Money pumping in ALTS and BTC happening together however BTC still quite dominant than ALTS at this stage. Most reputed exchanges are now offering ALTS to stable coin pairs hence BTC is no more a pre-req to buy other coins. Will this trend continue?