Since you are took chicken to even try, I will answer them for you:
Who said I chickened? Why are you so hasty like a teenage boy on the third date? The wolves in the nearby forest started howling and called it a day. Simple.
Now, one by one my answers, short ones cause I need to do some earthwork at last after rainy days. .
how diversity made whites "rich and powerful",
Ethnic and national diversity meant that each seperate emigre group added some new features into the melting pot. Good ones were promoted, bad ones rejected like in evolution. Each group learnt from each other because there was a sort of competition between them. Asians, Latinos and blacks looked on whites and each other and the other way round too. Eventually, it all led to the creation of the modern American nationality, the most dynamic and resourceful society which once put the man on the moon. Which other nation can boast of such an achievement? Whites, as the main part of this nation, benefited like all others.
when did we, whites, agree to that "gift" of diversity,
We already talked about it on several pages here. The whites agreed to diversity when they, for example, brought, bought, sold and owned slaves from Africa for 200 years of American history. Now you have 13% black minority and you are obliged to care about them cause they are YOUR blacks!
why is "diversity" expected only from the whites,
I don`t know what you are talking about. Which race is at the helm in the USA now? Who pulls the main strings, in public and behind the scenes?
did you ever hear from a Japanese guy: man, I wish we had more Indians, Pakistanis, Africans, and Latinos
Again, failed comparison. Why do you always have to offer such crazy comparisons? Has Japan ever been a host country for mass immigration like the US always was? Besides, did the Japanese put the man on the moon? No. They also weren`t able to win the war.with the US.
Now, can you not delay your answer cause we might think that you have chickened out?
As for your granddaughter, it is you who constantly mention her here. I am only following you nice habit.