Imagine does express a worldview which is difficult to reconcile with some traditional conceptions of things. OTOH, in the Messianic era, there will be freedom from want and all of humanity will worship G-d in purity.
Lenny Solomon came out with a CD putting some of the tefillot to Beatles tunes. And in the non-orthodox movements, there are frequently Beatles services and Dylan services. I’ve also heard of Beatles services in liberal Protestant churches.