Why might people want to blame a minority group for most of their country’s problems?

As humans, we often look to blame our problems on others. The best example of this would be Nazi Germany. Germany was facing massive debt, and though the problems were mostly with the government, Hitler diverted the problem by giving the people a common enemy: minorities. Minorities were unable to fight back, and with a common enemy for the people to focus on, Hitler was able to seize power.

Wait u answered your own question

Require the nobles and clergy to pay taxes.