Not in the least. Making such an equation would be the product of a sick mind.
Of the Japanese who identify as religious about 90% or more are Buddhists.
The most iconic element of the park is the 10 meter statue created by Seibo Kitamura located at the north end of the area. The right hand here points towards the sky symbolizing the threat of the nuclear bomb, and the left arm with its arm open is a symbol for eternal peace.