The problem is the velocity of money; by raising taxes on the wealthy and giving it to the poor they increase inflation and thereby interest rates; which interferes with the housing bubble, which they say is boomers nest eggs, and is thereby important to maintain and grow.
Its a problem with a bubble economy built on cheap debt and ever lower interest rates, you lose the ability to direct your own money supply. Look at owner-occupied housing's contribution to annual GDP growth, this bubble was fueling most of our economic growth.