The price semi-crash/dip is because of China possibly banning exchanges(unconfirmed), since based on coinmarketcap, China has a huge percentage of bitcoin's trading volume (look at screenshot below). Also, don't forget that bitcoin rose in price too high and too fast in the past months. So a correction is really to be expected.
The most effective attack that is ongoing right now by bankers is trying to steal the bitcoin brand by raising the blocksize and putting government agents like Jeff Garzik in control of the protocol by being the main dev. We must defeat segwit2x hardfork, that is the real treat of Bitcoin right now as a store of value. Im not even counting Bitcoin Cash, it's pretty dead now, but next step is defeating segwit2x.
Government issued hardforks are the biggest attack vector for Bitcoin, not pump and dumping it, because eventually the volume will be too big for that to matter.
Sorry you have it all backwards.
Core coin is the bankster controlles coin, not SW2x.
The Core coin developers are paid by Blockstream which is owned and controlled by big banks, they are actively stagnating Bitcoin development.
The SW2x team is a free team that tries to make Bitcoin work again and scale properly just like Satoshi envisioned.
Core team has been infiltrated and compromised for a few years now.
Anybody who thinks big banks and government will let a project as big and world changing as Bitcoin develop without their control is nuts.