No. You can shit all you want over the antinuclear boys but:

* Building nuclear plants is a 5-10 year plan. More if you haven't built them in a while.

* The first economy in the world has quite literally started wars over oil because it wants to keep using it.

* The countries that would be the biggest emitters right now are also the ones doing the most in electrification.

Building more nuclear wouldn't have changed shit: there is an ongoing work to maintain the world dependent on fossil fuels. We can't even get electric cars to properly pick up.