Countries imposing sudden increase in power rates for crypto miners is directly refusing to take money from an industry trying to be legitimate and clean as possible. It's been like this for years, and I think miners from China that relocated to Kazakhstan may need to seek refuge somewhere else.
Countries like Kazakhstan have low prices for electricity simply because it's obtained from burning the oil/gas they extract and the prices are dictated (arbitrarily) by the government, not the international prices (and basically free market). The price is low for boosting the local economy.
So if they convince the miners leave, the country may have a good chance to actually earn more on long term, by selling those resources to other countries more expensive than they would sell the electricity to the miners.
I don't agree with Kazakhstan policy, but I can understand its logic (if this was it).
And the miners.. well, as long as they are focused on getting the cheapest electricity no matter how it's obtained and how doubtful is the regime of the county they conduct their business in... maybe, just maybe, they deserve this. And as said, the new price is not that big either.