All Religions
G. K. Chesterton says that according to many so-called religion scholars, "Christianity and Buddhism are very much alike, especially Buddhism." In other words, what they really mean is that all religions are essentially Buddhism!
Aren't all religions essentially the same?
Kreeft: It is simply factually untrue to say that all religions are the same. No one ever makes this claim unless he is abysmally ignorant of what the different religions of the world actually teach... The implicit assumption is that the distinctive teachings of the world's religions are unimportant.
Regarding ethics the world religions have amazing agreement; but regarding the Who behind the ethics, there are significant differences—just as when a person knows about you, but they may or may not know you.
As a gut reaction, to avoid confrontation it's tempting to elevate equality over truth. This confuses the value of having an opinion (subjective) with the actual value of the opinion (objective).
It may seem more convenient and less controversial to believe all religions are the same, but it is logically impossible for each to have the same amount of truth, any more than conflicting answers on a math quiz are all right.
In no other field of study do we hold that all opinions are equally correct. In physics there is one physical reality, in history there is one past, in civil law there is one highest judgment, in mathematics there is one set of numbers , etc. The same holds for theology. Some ideas are closer to the truth than others; and therefore some religions are closer.
If Christ is who he claimed, then there are things we can learn from non-Christian religions—but always as a reflection or derivation of the God wrote himself into "His-story".