dude...when did You visit Israel?
I have many relatives and friends in Israel.
I am led to believe by them that many Israelis who consider themselves religious are not truly frum.
I like my rabbi's saying: "There's a difference between
very frum and
deeply frum"
This is a very interesting and wide subject, however I don't think one can use "frum" in that context, or that You can measure anything like that. On the other extreme I can assume, that a secular soldier who saved 10-20 Jews for 3 years on a daily basis in Israel, has virtues beyond measure, that many of the "truly frum" people will unlikely get the chance to accomplish that specific set of commandments in this life.
There's a reason why Baal Shem Tov preferred the unlearned simple people.
Correct me if I'm wrong but I think the biggest country of Baalei Tshuva is Israel...