The poor pay no federal tax. Is that still too high?.
Oh contraire, the poor pay plenty of federal tax, it's just that it's all hidden. Beyond excise, sales and payroll taxes, there's all the federal taxes that are rolled up in the cost of goods and the big elephant in the room that hits the poor the hardest of all; distribution effects of inflation eroding the buying power of the poor that fastest (since they're the last ones to get there paws on newly printed dollars). Top that off with a dumb ass system whereby the poor only receive around 17 cents of every federal subsidy dollar leads one to the conclusion that the modern welfare state isn't designed to help the poor at all, it's designed to give them just enough subsistence so they can continue to be sheared by the tax farmers without them burning the joint to the ground.