In bitcoin world, nothing can be trusted as long as it is operated by human. full stop!
That's true. For instance, the source of your misinformation cannot be trusted.
Would like to be in a world where only few people control the mining of coins, and guess what, even worse they can steal/rob/destroy your bitcoins if they want to.
Explain how they would do these things, or why you think this is possible.
I agree that bitcoin is decentralized in terms of the issuing mechanism. But it does not necessarily mean powerful mining pools cannot manipulate it!
But what necessarily means they can?
In a sentence: bitcoin mining (pools) must be regulated.
By whom?