The thing that really worries me about these kinds of beliefs in some kind of a god or gods is that they can provide a get-out clause for existential risks to humanity. If this physical universe is just one manifestation of existence, then there's less to worry about because there will be some kind of existence afterwards if you screw it up. But in my view the universe is all there is, and it very definitely doesn't…
But why though? If that's what you believe and there's nothing more, we know the sun is going to explode and destroy everything and an asteroid impact is likely to happen that destroys even sooner than that, so why does that matter?