Those who think that Ethereum is better are because they believe in technology more and believe in what they can see in front of them. People who believe in Bitcoin are because they see Bitcoin being widely used and highly recognized!
Interesting opinion. In fact, you recognized that technologically the ethereum is much better than bitcoin, and the popularity of bitcoin is based mainly on believing in it. However, it seems to me that this is not even a matter of believing in bitcoin, but only that bitcoin is capable of making a big profit by raising its price. Remove from bitcoin the opportunity to grow in price, and bitcoin few will be interested. I have nothing against bitcoin, it's just the law of the market.