There is, in fact, no secular movement, yes. However, there wouldn't be a lot of things if we only counted absolutes.
Secular movements, like I said, attempt to minimized the impact of religion, while, at the same time, refraining from interfering in religious matters. That does not mean that religion does not influence politics and that politics don't influence religion, but secular movements attempt to minimize such things.
TBH, I'm not even sure who is advocating what here, or even what the debate is about, but I'll go with the flow.
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