Well, this may well happen over time. The main thing is that bitcoin has not developed for a long time, while the ethereum network is now being radically updated. No other cryptocurrency, except bitcoin, has a throughput of seven transactions per second. Therefore, he was already very hopelessly behind. In addition, in light of the fact that states have pledged to reduce greenhouse gas emissions, it is likely that over time it will ban the mining of cryptocurrency that uses the energy-intensive PoW algorithm. This primarily applies to bitcoin, which is unlikely to switch to the PoS algorithm.