You can silence a brain defective, but that won't cure his defect. Fact is, nothing will.
At the same time, if you can truly think and reason properly, you can only have compassion for them. Nobody would be as as absurdly stupid as they appear to be intentionally. Just like gay folk who would never choose to expose themselves to all the hate and misery gay people get from being born gay, they have brain defects that can be scientifically seen and measured, that are not of their own making. They were shamed as children and as a means of coping will never feel shame again. All of their thinking and actions are to shame other people and prevent them from feeling it. It's a brain defect that manifests as a disease, one that formed so they could survive the brain defective parents that raised them. So don't be mad. Try to have some compassion. They really really really aren't to blame.