It just doesn't justify the resources of whatever entity needed to get the market to plummet this hard. It may eventually be an option later in the future, but for that to happen there needs to be far more capital involved.
And I too believe that Bitcoin isn't the only coin for ever with these futures tied to it. This market is growing so large, that even certain top altcoins can turn out to be money making machines for these platforms.
Indeed. In theory futures could manipulate the market. But its not the case here. The futures trades might deal in a few thousands of BTC's but I don't see it plummeting the entire markets when you compare to the huge exchanges. Market manipulation, Pumping dumping, Scam Offerings are all part of the unregulated markets. People just want to blame it on something or someone to console themselves from the regret of buying at All time high.