Again, it is a metaphor, don't take to too literally.
Blacks were slaves, whites and immigrants were not.
Can you picture slavery as digging out of a hole (debt)? Until breaking even, you are subject to compound debt.
Yes, immigrants do well within a generation or two. Blacks have only had civil rights for a generation. White males not only have always rights but made them.
Yes, I'm generalizing based on skin color. That is literally what race is.
Mortgages cause real estate to be more expensive than if everyone had to pay cash. So yes, mortgages payments are cheaper than rent. But rent would be much cheaper in a would without mortgages.
Look at the history of compromise that lead to the Electoral College -
Madison acknowledged that while a popular vote would be ideal, it would be difficult to get consensus on the proposal given the prevalence of slavery in the South:
There was one difficulty however of a serious nature attending an immediate choice by the people. The right of suffrage was much more diffusive in the Northern than the Southern States; and the latter could have no influence in the election on the score of Negroes. The substitution of electors obviated this difficulty and seemed on the whole to be liable to the fewest objections.
Interesting you chose those specific examples. Police killing black men in those instances did the opposite of what you claim. They turned orderly to disorderly.
"I think the iPad is still the best device, especially if you want to do real work ... While the Google apps are very powerful, you’re limited in what you can do in a web browser."
Every platform has limitations. Windows and Mac seem to have the least. But does "real work" just mean whatever device you like best?