US has had periods of wild spread moral panic around satanic worshipping, including murder trials where such ideas became central to the cases.

Scrutinizing belifs generally don't lead to anything but misery for everyone involved. This is very different from scrutinize crime that has happened.

The only grey area is the role of secret police. Some people, possible a majority, do want the government to scrutinize belifs and political views in order to determen risk. I am less sure, but I also know that human rights and protected classes has less protection against risk assessments conducted by the secret police.

In the US, we love ethnic cleansing now. It's the actual policy of our current president.