Yes i agree with you i find the technology of ethereum better than that from bitcoin and i believe a lot of people already know that ethereum is the true rival of bitcoin as some people prefer ethereum over bitcoin.
Yes it's true that system used by ethereum is much better compared to bitcoin, but it is not enough basis to says that ethereum had a capacity to steal the numbers one spot to bitcoin. Because if we consider the numbers of usage and popularity of crypto, we all knows that bitcoin is much numbers of supporters than ethereum.