1 Timothy 6:10 The love of money is the root of all evil....
This is perhaps the most true saying I've heard. The love of money (or power, prestige, etc) is the root of all evil.
One day, one entity will control all the pools, it's that simple. All they need to do is make an offer that the pools cannot refuse.
I'm not sure if other mined cryptos are the same way since I don't have time to explore them. But in the end, someone or entity is just going to take over bitcoin in a fascist way.
Bitcoin is a technology demonstarator. In 10 years you will find it totally different in ways which we can't imagine now.
Already something like DPoS looks promising, I am sure it will keep evolving and there will be much better options in future.