why is judaism better about keeping out the losers?

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From what I see, most Christians don't understand the beauty and deeper meanings of the Hebrew language.

While this is true I’ll let you in on a little secret - neither do most Jews.

I'm not sure what you mean by "most Jews".

Jews, or Jewish people who are looking to be observant?

From what I've experienced, almost all Torah classes and study of Torah includes deeper meaning of the Hebrew language.