“Religious Jews like myself have contempt for Jews-In-Name-Only (JINOs)”
I disagree with them, but I recall that is not a Jew’s job to force a fellow Jew into observance — that breeds resentment and a stiff neck and “fake” observance.
That is, observance that lacks the heart and faith behind it, which is pointless.
Love them, be kind to them, and help them the best you can. By far, that is the best strategy.
(FWIW, I am Israeli, was deemed “secular” in Israel, and am leaning toward some sort of non-kabbalistic Orthodox in the States.)
I don't care if they are observant. I care if they preach the DNC platform from the bima, instead of the Torah.