Bitcoin will be to the online World what Dollar is to the World economy.

[Green Ocean]

Bitcoin could even become the online reserve currency.

Other Cryptocurrencies will continue to exist alongside Bitcoin just as other fiats exist along with the Dollar.
No need to eliminate other Cryptocurrencies in the name of fighting so called S*tcoins..
Crypto Maximalism or whatever it's called makes no sense. Different brands of thesame technology/products can exist together.  Apple for example started the modern touchscreen phone but it didn't try to eliminate Samsung or  other Android phones because they share similar features. It's against competition and free market.
Crypto world will encourage Free Market  better than any country on Earth.
Strong and fair rules will eventually take care of actual Scamcoins