Actually, Democrats want to raise LTCG taxes, estate taxes, corporate taxes etc, but stupid middle class idiots keep voting in enough GOP to stop those things from ever happening because they think Dems are gonna take their guns and build abortion complexes. And even bigger idiots don't even bother to vote because they are too stupid to see that Dems might actually make things a little better instead of worse, so the huge advantage the Dems should have at the polls is negated.
Seems like the democrats have been in a pretty good position to change all that stuff for a while now. And back in the 90s. Instead they used their power in the 90s to pass the 1994 Assault Weapon Ban, which cost them the next couple elections and expired to no effect.
Do you not realize that the .1% (finance industry) donates equally to both parties? Do you really think the Democrats are going to bite the hand that feeds them? What the democrats are proposing is to take from the "rich," being those who make up to a million dollars a year, usually through professional or trade skills or small business entrepreneurship. These guys are already paying the highest percentage of their income in taxes. The "wealthy" making $10m+ a year will be totally unaffected.
In the end, you have a sliding scale of government dependency, with those at the bottom living off those in the middle, and those in the middle supporting the whole system. Everyone below the 1% are essentially slaves, with the government operating as the middle-man, taking from the middle & bottom, redistributing a little, but pumping tons of it out to selected members of private industry (finance, defense, etc.) and giving the bottom just enough to stave off a revolution.