In the USA, however, things are quite different. The call goes out, and money and votes come flooding in. In Afghanistan today, the Taliban rule. They are followers of fundamentalist Islam. The Church and State are not separated - the Church is the State.
Qu'ranic law holds precedence over all other laws.
Many of the original European settlers in America were trying to escape the persecution of fundamentalist Christianity. There are many in power today, or doing their darndest to get into power, who would see a return to the religion of Europe of a couple of centuries ago. If it were possible for these politicians to speak to the dead, I suspect that their ancestors would have some dire warnings about the direction that they are taking. It is a complex issue, to be sure. Looking at Britain today, having an Established Church might not seem to be so bad, and some might hold it up as an example to convince others of the folly of separation.