that is something that the newcomers who are now bag holding tons of different altcoins in their so called "portfolios" don't want to accept. some time ago someone posted a screenshot of coinmarketcap website that belonged to a couple of years ago. it was funny to see the "top" coins of that time and how they were hyped up so much and people were thinking they all are going to live side by side of bitcoin and there were even talk of "replacing" bitcoin! that list doesn't look anything like today's list but people still have the same expectations...