Let’s start by removing the divide: You and I have made the same mistakes these people are making. We may be a few steps ahead of them in leaving the swamp, but we started in the same swamp with them.
In all of human history, there may be no greater conditioning system than our modern government schools (including all the private schools that follow the same pattern). From infancy to adulthood, it affects most human minds in the West. And I dare guess that 98% of my readers bear its scars.
So, you must start by understanding that these “brainwashed” people have spent a huge portion of their lives inside a massive mind-warp. Don’t be too quick to toss them aside. Learn patience. Breaking out of their mold is scary, and it takes time.