You want to understand trickle-down economics? Okay, here you go:
You go to an elementary school with a kindergarten and grades 1 through 5. There are 100 students in each grade, for a total of 600 kids at the school. You walk in with 600 individual pieces of candy, one for each student. You go to the 5th grade class first, and give them the bag. You tell them they can each have one piece of candy, and when everybody in the class has one piece, they have to hand the bag to the next class.
In theory, everyone will take one piece of candy and each class of students will be happy.
In reality, the 5th graders go crazy with the candy and take as much as they want. They get stomach aches, and reluctantly hand the bag to the 4th graders. They take as much as they want, and give the candy to the 3rd graders. The 3rd graders see the candy is starting to wane, so they take a little less than the 4th graders, and give the bag to the 2nd graders. The 2nd graders take one piece each, and give the bag to the 1st graders. By now, there are only 85 pieces of candy left for 200 students. They fight each other for what's left of the candy, and those who can't fight for themselves (or just have bad luck) are screwed.
A few of the people who get screwed, or only a few pieces of candy, see the 5th and 4th graders swimming in candy wrappers. They go up to the upper-class students and ask why they didn't get as much as the other kids did. The older kids tell the younger kids that they didn't work hard enough to get their share of the candy, and they don't deserve it if they couldn't get it.
Welcome to America. What class are you in?