And he is. It's simple math.
>top tiers like Aokiji and Akainu fight for ten days straight to the death, no holds barred
>all they do is alter an island's climate (albeit the island is more like the size of australia)
>imu fires uranus at an island
>the island is now gone
>enel fires raigo at an island
>the island is now gone and the first raigo was weaker than the second
So what's the major malfunction here? How do you fail to understand such simplicity? Enel's firepower is in that range. He has one of the strongest moves in the whole series to this day. He's an early villain from an early arc who threw around what the protagonists could only throw when they finally reached the end of Wano.

Ergo, Enel is a top tier. Are you mad PISSzaru has never pulled off anything like that?