The question is, do Buddhists, Shintoists, Taoists, and etc. love G-d as much as they love their own selves?
That's the problem. If G-d is then there are beliefs in G-d that are false. If G-d is not then all beliefs are equally valid. But presuming that He is then those who love Him will seek to know Him as fully and as perfectly as they can. If religion is just a comfort for the believer, then it doesn't matter what they beliefe. But if religion is the attempt to know God as He is, then it matters.
Are you a Buddhist, Shintoist, Taoist, or etc? Do you love G-d? Come to the Table.
Shalom.