Hmmm...
Leads to another question...
Why do Jews practice differently? If they're all guaranteed spots in Heaven, why go to the trouble of being especially "Religious"? (If that makes sense?)
I am guessing the answer is that it makes them happy, or content while here on earth. Which, personally, is why I respect all those of different faiths..."Whatever makes them happy is fine with me".
I don't think the Jewish religion would claim that all Jews go to heaven. Jews have to keep up their covenant with God. I don't think Judaism is an automatic pass to heaven.