Inclined to agree, but only when dealing with the top-tier or even second-tier alts.
I question that logic, because if no one is using those altcoins or even buying them, they can go to zero as a practical matter. Even if a coin fell to 1 satoshi, if there are no buyers, there's no chance for a person to sell what he has. Take a look at the Yobit 1-satoshi graveyard. Put in a sell order on one of the crappiest coins there, and that order might sit there forever, never getting executed.
I wasn't exactly referring to the absolute bottom of the crypto junkyard.
I was more referring to the visible top tier crypto currencies that you can actually short through one of the multiple platforms offering these trading features, which is why I said
I dare anyone to short them. The top 10 crypto currencies are heavily tied to Bitcoin's price and more often than not don't move on their own, unless they get pumped out of nothing, but these pumps never last long since pumpers will cash out and tank the market down again.
People were initially heavily speculating about BCash to become worthless, but that hasn't really happened. With so much trading features available nowadays everyone can put their money where their mouth is and short them, but no one seems to be in the mood for that.