Ethereum has been use widely for ICO purchase which have given this coin a high recognition. And also ripple has been on test for her technology in financial institutions to use since it can process trasactions than bitcoin. Will these two coins replace bitcoin and become number 1 on the coinmarketcap
ethereum is indeed widely used by the founders of ICO ... because ethereum has a platform that supports various coins or altcoins (ERc20) ... so it is natural that ethereum continues to be used by ICO founders... but Bitcoin cannot be replaced by ethereum or other coins ... because bitcoin is the king of the king on all coins .
Indeed, ripple and ethereum always have very special points, there are always attractions for many investors when both continually offer new, updated and more developed features but even when their perfection is gradually improving, both still cannot resist bitcoin because bitcoin is like a solid floor, supporting the crypto house, once it is broken and replaced, people living in it will face danger. Everyone knows that and therefore, they support bitcoin the strongest, they don't want to be at risk