Bitcoin Dump - The Worst Thing
When BTC dumps, all other coins also dump, it is worst thing because even if bitcoin dumps, then it should not effect the other cryptocurrency price value in BTC. i,e when BTC dumps the price value of altcoins is also drops while it should increase because btc downs. When people will realize it that it is not in their benefit?
There are still coins that a not affected by Bitcoin dump. This are not stable coins, but their products and professionalism in regulating the price of their coin has kept it stable and growing.
Any coin that is relying on Bitcoin for growth will soon go into extinction. This is one of the reason why some person perceive cryptocurrency investment as ponzi scheme.