In time altcoins that have no use or value in the real world will start dying out and only those that can be used as a legitimate way of carrying out transactions and be used as a currency will survive.
This is true but at least should have mentioned those who you consider are useless and will be out of the list in the future.
Like I am sure about Ethereum, Monero, Verge and Zcash are the one's you will see after 10 years in the list too due to their performance and usability.