In case you hadn't noticed, Buddhism is on the decline in Japan.
As for positing celibacy as the main cause of misconduct, this is ridiculous. As for it going against nature, Lord Buddha was not a tyrant, he had very good reasons for asking celibacy of his followers which are all available to you in the scriptures.
In Boy Scouts,Hare Krishna and the Anglican Church, there is extensive history of abuse. In Boy Scouts most of the perpetrators were married. The Anglican Church has married clergy. In hare krishna, most of the abuse was perpetrated by grihastas-people in the married section of the community. When Shambhala has a crisis regarding misconduct in the 1980s, it was perpetrated by a lay regent.
The big sex scandals of the moment in Buddhism in the US involve married, Japanese lay Zen teachers.
So your hasty conclusions do not hold water when you look at the broader history of abuse outside the Catholic church. Getting rid of celibacy will not get rid of abuse. The problem is the dynamics of power.
Advocating dismantling celibacy is advocating dismantling the Sangha. The great teachers of Buddhism at the moment include monks like HHDL, Ajahn Brahm, HH Karmapa, Ven. Heng Sure. Your generalizations dishonour the sacrifice and precepts of such teachers.
I will not let such generalizations go unchallenged as they erode the already tiny amount of support for many monks and nuns in the West, who are very sincere and deserve better.
I'm sorry if I upset you. In my original post, I mentioned that I have a great respect for all ordained members of the sangha. I do not believe that all practitioners of celibacy are sexual abusers or have the potential to become that way. My personal belief is that a very small minority of monks have been engaged in this activity unfortunately they tarnish the whole image of buddhism, the same as some catholic priests have tarnished the image of the catholic church I could most probably add boy scout masters & junior sporting coaches & school teachers to that list.