If you want to be fair, admit a tax credit is a market distortion just as a subsidy is. It’s an indirect subsidy, but it can make an otherwise unprofitable enterprise profitable, if all its customers don’t have to pay some taxes.
Government help on insurance costs for nukes is merely a fix for a government problem, that of over-regulation. The government has never taken the bully pulpit and explained to a hysterical public how safe nuclear power really is, and why Chernobyl could never happen here. (Three Mile Island was a huge disaster, but there were zero fatalities - something that can’t be said for coal, oil, gas, solar, wind plant “huge disasters.”) But they don’t, they just subsidize the outrageous insurance rates that they are partly responsible for the high price of.
My nuke E prof (who worked on the Manhattan Project) in college took one look at a picture of Chernobyl and said - "that's not a power plant, that's a bomb factory".
Something about being able to access the reactor while it was running.