I think there are several things to consider with this question.

1. Nuclear energy is very expensive. “A 2014 analysis by the financial advisory firm Lazard captures the economics holding back nuclear expansion. Lazard pegs the cost of building nuclear capacity in the United States at $5.4 million to $8.4 million per megawatt. Adding operating, maintenance, and fuel costs yields an average lifetime cost of $92 to $132 for every megawatt-hour generated. That is far above the unsubsidized costs of utility-scale solar power ($72 to $86 per megawatt-hour) and onshore wind ($37 to $81 per megawatt-hour).

Power from new natural-gas-fired plants is also far cheaper than nuclear at $61 to $87 per megawatt-hour” Fairley, MIT Tech Review.

2. Nuclear power (and any base load station) is universally subsidized by governments as a public service. Power production was partially socialized years ago because private companies ran with their monopolies and couldn’t resist the temptation to price gouge. Prices that we pay across the country are subsidized by public spending. Without this socialization of energy and its infrastructure for the public good, construction is prohibitively expensive.

3. Nuclear energy is also subsidized by the military for the benefit of the military industrial complex. The added cost of maintenance is justified by the desire to maintain a nuclear arsenal.

4. Most importantly, we can already not trust corporations to prioritize safety over profits. We don’t even trust other governments with the technology. The worst potential example of this would be corporations in possession of nuclear energy. The potential for nuclear meltdowns, explosions, the sale of enriched material, etc, would be inevitable.

A nuclear plant built privately for the mining of BTC would not make financial sense, and it would not make sense for the society to allow. That said, a miner’s selective draw from an existing nuclear plant makes tons of sense, and many miners find cheap electricity this way. Make no mistake though, this is energy that is subsidized by government. As much as many of us here advocate for decentralization of many systems, we are all the beneficiaries of social subsidies without which life within a community would not be possible.