If the German H-45 class battleship was built, then did the navies of various countries compete with it at that time?

Let's talk about whether it can be built first. The empty ship displacement of H45 is 6 17000 tons, the light displacement is more than 6 times that of Nimitz, and the length is at least 609 meters, which is about 2 times that of Nimitz. At that time, there was no dock that big and long to accommodate H45, which was simply fantastic. At that time, Germany didn't have so many resources to waste on the H class. In the case of H44, the displacement of the empty ship is also 120000 tons, and it is also impossible to build. In terms of materials and processing technology, it was not enough to build such a large warship at that time. But if the H45 is really built, there is really no such warship in the world that can compete with it. The first index of battleship armor is the distance 10000 meters, which is enough to resist its own caliber armor-piercing projectile. According to this calculation, neither imperial japanese navy's Yamato class nor the US Navy's Iowa class, or even Montana class, can be confronted. However, the 800 mm turret and barrel are extremely heavy, so it is very difficult to move the turret, and the loading speed of the shells is unbearable, which is not even suitable for attacking moving targets. It will be very difficult to deal with a fast battleship like the Iowa class, especially when the latter uses cruiser tactics. It is also impossible to build H45 at tactical and strategic levels. The Pearl Harbor incident also proved that when a warship meets an aircraft carrier, there is only one dead end. Strategically, the situation in Germany at that time did not allow too much waste of resources, and the North Sea was not suitable for such warships to sail.