Well this is what the insightful Tone Vays claims...
He claims that ETH, DASH, shit 99.5% of all the ALTS are scams and the only coin that will survive is Bitcoin.
So l guess we should all sell our Alts now!
Nope, we all do not need to sell our altcoin even if you choose to because as far as I am concerned, there are some altcoin that are potential and worth investing in because they have good community and very professional team members and if you take your time to do a research, you will find this good coin.