There are numerous examples of injustice in America (blacks treated unfairly in
You are right that there are very high levels of hypocrisy in the US: our actual behavior often fails miserably to cohere with our announced values. But you should also recognize that some of the problems you mention are extremely intractible and may be extremely difficult to remedy. Have we made progress on these issues? I think we have, but I also think that the progress comes in fits and starts and also sometimes moves backward before progressing again.
As for our tolerance for the gaps between our professed values and our actual practice, I think lots of factors come into play. One such factor is the degree to which we are willing, ready, or even able to make progress to eliminate the gaps a primary priority. Notice that all of us may value something, but not value it enough to set other priorities aside in order to make progress on this particular thing. The point is that people have limited resources (in time, money, energy) to "spend" on improvement in all of the areas that need improvement. To live at all comfortably in the world, one has to learn to accept a fairly substantial gap between how we think things ought to be and how things actually are. That doesn't mean we should all just give up and accept that "some things will never change," as the Boss put it. But it does mean that progress can be frustratingly slow, and we also have to accept that people's priorities are not all the same. From the fact that a majority would agree that V is some important value to be pursued, it does not follow that people will actually pursue V in their own activities--because their "moral economies" may simply not include the moral resources to pursue V.
Viewed in this way, I think you can see that not all of the examples you give are always simply cases of hypocrisy. They may, alas, be examples of inadequate moral economies leading people to accept (perhaps a little too readily) what they actually believe should be changed.