At that level, and looking at the recent trends in tax revenue (see below), they might even have a chance to eliminate the debt.
Point #1 shows a basic, fundamental misunderstanding about human nature and the nature of government. Being MORE efficient necessarily means needing FEWER government workers.
Government spending should be capped at 10% of GDP. More services would be obtained through EFFICIENCY, not higher taxes.
At that level, and looking at the recent trends in tax revenue (see below), they might even have a chance to eliminate the debt.