I am old enough to remember when similar statements were made about other - now out of favour - energy production methods. NPPs had a "Once in a thousand years" failure rate. Gas was fossil, sure, but the CO2 would be absorbed into the ecosphere (to make plants grow).

In the end, all energy eventually dissipates again. That does not mean that we do not have immediate or near-immediate phenomena to consider (like: global warming).

Let's take solar ... we now have begun to replace agricultural areas with solar farms. For example: How does this affect biodiversity in that area (the things look not green, but gravel under it)? I'm not even saying it is necessarily a bad thing - just a change.

And we should be careful to change running systems, especially considering the stakes. Instead, what I see is proponents of one tech over the other happily shouting down any attempt at critical consideration.