This conspiracy theory is in the forum for quite some time now but no one can provide a single evidence that they are really manipulating the market price.
I also saw one topic about the cartel in futures which seems they just want to spread FUD.
The list you provided is actually great, yes Government decision should also be included because as we saw recently, their decisions really affect the price of the Crypto market.
Actually the whales were mentioned by someone above , but I agree with you that those conspiracy theories have nothing to do with reality. It surprises me how people can believe in such things. Can't they estimate what would it take to perform such manipulations, taking into account that today's trading volume for BTC is $8.5 billion? While trying to manipulate the price with such a big daily trading volume it is possible to lose $100-$200 million in one day if something goes not as planned. No one would risk such an amount, nor Bitcoin whales, nor fiat billionaires, no one.