It is note able that almost all altcoins are now 80%to 90% negative from their all time high due to this happen only bitcoin uncertainty.
So what if it is caused by bitcoin price fall? altcoins are dependant on bitcoin whenever bitcoin pump altcoins dump and when bitcoin is dumped altcoins pump this has been happening already for more than 3 years now and you just figured it out right now. Bitcoin is the one who dictates altcoins price so don't blame bitcoin because of your loss on altcoin if you have ever lost money on trading altcoin.