Why do some people think that using science to "explain" any form of theism is a right way to understand belief in a God?
I take it you're complaining about sociological and anthropological hypotheses to explain why religions are found in just about all cultures?
Or is some other aspect of reasoned skeptical enquiry of concern to you here?
In discussion of theism science are useless since science do not "know" the unseen, so they can not verify a "result"
The world is full of religions of different kinds, and individual religions are divided into thousands of sub-religions.
This is because with all the supernatural aspects of religion there is no such thing as objective truth, no way of showing that claim A is correct and therefore claim B is wrong. Instead, any supernatural claim can be 'correct' simply because someone wants it to be and can get at least one other to agree.
The Invisible Pink Unicorn and the Flying Spaghetti Monster are satirical examples of the problem ─ they're no more falsifiable in reality than any 'genuine' religion.
if religion or spiritual teaching is discussed it has to be done by the teaching of each spiritual teaching. Not by use of science.
It's plain to see, just by looking around, that religion is about group solidarity, cultural identity, joint formulae for life ceremonies (coming of age / partnering / birth / death) ─ and historically, explanations for those things and for natural phenomena (weather, drought, plague, and not least luck ─ in hunting, love, war, and so on).
So (assuming I've understood the point you're making) I don't see any way I can agree with your OP.