For 10% income earners in about 6-8 states, that is true. However, when you combine that with margin rates coming down, very few will see a tax increase unless you have all of what you said, make 10% income AND have a massive mortgage.
And just because because you find something on line, especially if it's from the Fed Gov., doesn't mean those figures are correct/valid.
My property taxes are very large; they are so for several different reasons, none of which are any of your business, nor to be placed on an open thread.
Just because I had the warewithall to pay cash for my house and land, doesn't mean I live in a shack on a postage sized lot.
Though some like to have a mortgage ( for the tax deduction ), or want some place that they can't afford otherwise, shouldn't impact my taxes!
Oh brother...are YOU obsessed with money ( "massive mortgage, MASSIVE this, MASSIVE that! ), arfen't you. *snicker*