I think, you guys here are a little confused by viewing labels as defining a person. How about this view:
fact: we have Jews all along the spectrum of observance. I am not talking MO v non-MO, but along the traditional measures: shabbat, kashrut … We have millions of people R’L who are not at all, or are partially, observant. These people are not, mostly, result of laxity of MO shuls, but of all other factors of the modern world.
Some of these people might sometimes come to a shul or otherwise interact with observant Yidden and, hopefully, learn and get inspired. Where will these people go? Some to Chabad, some to MO, only rarely directly to a yeshivish or chassidish shul. This is what you are saying when you mention that many of people in “MO” are not observant. You seem to be proud that none of these Jewish people who need our help are not coming to your shul … (this may be an unfair generalization with apology to those to whom it does not apply). Any ideas how to fix it and invite those people to your shul!?