I think he just means China control it because of their mining domination and is upset about it feels its unfair. Being unfair is they only think agree with this user saying. Other then that they are talking crap. The user sounds very angry about something or another. I wish they would explain why. Or its just a FUDster without anything better to do. At any rate bitcoin has proven itself over and over so who cates what the OP says.
There's only one reason why people could hate bitcoin and cryptocurrency the most, in the case of the OP, he might invested too much and putted his trust to bitcoin with an all out investment and might turned out to lose in the market. With that, it is reasonable for some kind of him to hate bitcoin but with that, it is not the best way to express your anger but to turn your mistake to something productive. It is not late till now for you to earn in crypto, you just need patience to cope up with the market and avoid what you've done before.