Cryptocoins are subject to majority attacks and rules that can change at any time based on the miners preference. Who mines it is very important.
You would also care about who owned some real estate before you buy it if it was some company known for dumping toxic wast into land and then selling it. Those things are not as apolitical as they look like in an organized society.
If I decided that I could profitably use toxic-waste laden land, then yes of course I would still buy it and, yes of course, still not care because that's what due diligence is about.
Your liquor store sells alcohol that kills more people under the age of 30 than any other way...why aren't you standing in front of it demanding it shut down?
They get to censor transactions, they get to decide what makes it and what doesn't, they get to double-spend if they want to. That's how authoritarian government works.
This is a natural consequence of the proof-of-waste system employed. The hashpower goes to the place where waste would be the cheapest, and that's China.
[1] https://news.bitcoin.com/65-of-global-bitcoin-hashrate-conce...