If it were true that such flexibility in doctrine were necessary for liberation, the Buddha would have taught it.
I'm not interested in convincing you to take up Buddhism at all. You can if you want, it would be good for you, but I fundamentally don't care. The thing I do care about, is if you're gonna do it, don't go out and start pretending that Buddhism is something that it really isn't, especially if you have not done much research into it.
Personally, I would prefer you don't get involved in Buddhism at all rather than try and draw some narrow metaphors out of Buddhist texts for use in your secular life.