lol No, what you call "counter-evidence" is nonsensical because you have to prove that Serizawa's nuclear bomb powered Godzilla more than the French nuclear plant. The argument of the 7 Teratons >>>> "50 Megatons" is debunked if you take into account the following:
Supercharged Godzilla was compared to the Burning Godzilla in the novel, who is stronger than the base post-Serizawa nuke Godzilla. It was even said in the novel that when Godzilla battled Scylla, he was "at peak," which would put him at the very least on similar levels to his post-Serizawa nuke Godzilla self from KotM, if not superior. This proves that in MonsterVerse, the French nuclear plant has even more radiation than Serizawa's nuke.
So, the scaling will look like this:
Supercharged Godzilla = Burning Godzilla >>>>>>>> Peak Base Godzilla/Post-Serizawa Nuke Godzilla