Also, how do you define Non-Religious vs. Religious? There are many Mitzvos and Aveiros in the Torah. Most Jews perform some Mitzvos and commit some Aveiros regardless of whether or not they define themselves as Religious.
How would you compare someone who keeps Shabbos but speaks Loshon Hora vs. someone who doesn’t keep Shabbos but never speaks L”H? Why should the first person be considered Frum and the second one not-Frum? Or what if someone has been Frum his whole life but never bothered to learn Hilchos Shabbos properly so he is in fact mechalel Shabbos every single Shabbos?
Or what if someone keeps all the technical halachos but has no relationship with Hashem whatsoever vs. someone who has a hard time with technical halacha but is very good at Chovos HaLevavos and has tremendous Emunah and Bitachon?
Or someone who excels at Bein Adam L’Makom but has a hard time with Bein Adam l”chaveiro vs. someone who excels at Bein Adam l’chaveiro but has a hard time with bein Adam l’Makom?
As Chazal say even the simplest Jew is as full of Mitzvos as a pomegranate. May be zoche to always see the good in every Jew!