Ripple could never dethrone bitcoin. Price wise, by just comparing their total supply, it could never exceed bitcoin's achievement. And with the community bitcoin is having, bitcoin will continue its reign over other cryptocurrencies.
Yeah youre right it is very impossible that ripple replace bitcoin because as what we can see to coinsmarketcap list its a very big different from bitcoins price.Thats why i dont think it will gonna be happened because i believe that bitcoin is a king of all kings.