1.
Nati raymond asks:
how can the mishna say all of yisrael has a chelek in olam haba when some people don't?
Nati raymond, United Kingdom
2.
The Kollel replies:
Dear Nati,
The same Mishna continues one line later "and these do not have"
So- All of Israel means all (including those who received the death penalty in Beis Din)- except for the exceptions!
The Meiri writes that even the evil that received their punishment are still called Yisrael- but the list which have no share are not called Yisrael at all.
All the best,
Reuven Weiner