Let me show you some NBA perspective on this, bitcoin is the king of cryptocurrency right? same as LeBron as the king of NBA. But here comes ethereum the prince of cryptocurrency just like Ben Simmons as the prince of the NBA. The prince will dethrone the king on the eastern conference finals same as ethereum that will dethrone bitcoin in the next couple of years. Wether we like it or not the king will reach its limit. Mark my word. Trust the ethereum process!
I do not think that the etherium is a threat to bitcoin. The etheric is just one of the altcoyins, albeit quite "fat." Bitcoin will remain "digital gold". The etherium is certainly an excellent altcoyin, but with bitcoin it is not worth comparing.