Widespread belief that government institutions are dysfunctional is a desired target and result for some people. If you want to lower taxes and gut regulations, getting people to think the government is useless is an incredibly effective way to grow support.
The sad part is that many of the people that fall for this are the ones that need to support it the most.
Low-income workers that are abused and put their health at risk don’t want workplace regulations. People in poverty have been convinced that increasing taxes on the ultra-wealthy will hurt them. People without the ability to pay for healthcare don’t support public assistance for it. The list goes on and on, covering most of the critical topics that government can and should be helping with.
When you convince all of these groups that “government bad” then you can wipe these concerns off the table.