You're right. Also recognize that the tax numbers stay pretty much the same instead of expanding out. In the 60s, someone making $100k was doing really well. Not so much today. I agree with Republicans that tax code reform needs to happen, not increased taxes.
The AMT is hitting way too many people. Originally it was designed to only hit the super high income earners. Now it hits a lot of people.. why doesn't that get changed? Because it generates money since the base of tax people has greatly increased. Again, tax reform would fix this.
The bigger picture is tax reform is needed, not higher taxes on a crappy outdated system. Spending cuts are a must.