There is one thing that changes some of those types of people. A lot of people are unfortunately not rational at all. A collapsed economy where they get thrown out of their houses and can't feed themselves or their families will turn them against the government. And at that point, they will become all too willing to believe anything against the present government, which they trusted, that allowed that to happen to them to support their new view. It won't matter to them whether it's true or not, what will matter to them is that the government they unconditionally trusted let them down.

However, you are right in that as long as these people have some economic stability and the TV running their beloved msm propaganda, nothing short of a major disaster will move them to change their views. Incremental removals of their freedoms and economic power will not wake them up.