Why is it their solution to any problem is taxes?
Leftism uses any issue to advance Leftism. Look at anything. Global warming, for instance. The planet can only be saved by redistribution of wealth, government control of energy, government control of transportation, government control of agriculture, reduction or elimination of national sovereignty, reduction of individual liberty, etc, etc, etc.
You can do that ith ANY issue. The solution to every crisis is Leftism, and confiscatory taxation is the prime requisite.