bitcoin bitcash talk...

Now let's talk... there are rumors going on , bitcoin is going down possibly to be taken over by the bitcoin cash, now the big question I have is , since most of the coins rely on bitcoin, does this mean all the other coins are going down... ethereum litecoin, dash I have a list not to mention the upcoming new coins ... it would really be sad to see the bitcoin crash but then I would understand that's how the world works lol.
I have thousands of questions really , but from my point of view I think it's going to take an army to bring the bitcoin down, if all these coins rely on bitcoin eg. ethereum , seeing how many tokens are bought using ethereum then I would think there's some higher power controlling the coin , well obviously at the moment people are scaring one another about the bitcoin crash so if this scare tactic works well, we might just find ourselves relying on bitcoin cash cause we'd think bitcoin is going down, only to stop and think that we as a people control the bitcoins market.