"The materialist proposition of the Universe is that it is all that is. "

This particular "materialist" proposes that the Universe consists of the known and the unknown. The unknown (which is quite 'big') MIGHT encompass God ... for all I know(!) The only 'evidence' I've seen so far consists of unsubstantiated anecdotal evidence in ancient texts and the fervent 'faith' of the religious. To a scientist that's not enough to act on. It certainly doesn't motivate me to start attending churches or temples and praying and worshipping!