Because it is anti-free market.
Anti-free market? How can that be? We have legislatures dominated by free-market proponents.
How many large companies stand to benefit from nuclear power? You don't need to use more than one hand to count them.
How many medium and small companies benefit from wind and solar? Lots and lots.
A free market has many buyers and many sellers. If you have a few sellers, the market is not so free.
It is the interest of ever-larger corporations to become even larger. Larger corporations give larger donations.
Nuclear power companies probably have given some very large political donations.
Can the wind energy market give such large donations?
Now you know why the push for nuclear energy.