Why should they? The way things are going, all you have to do is draw breath to be eligible to vote. Deep down, the pols don't give a damn where the money comes from. Tax revenue is tax revenue. Left is Right and Right is Left. They're all the same.
If they can stay in office while pandering to a new and loyal voting demographic it is a win/win for them. To hell with the rest of us. The Game is all about staying in power.