One can also be dan l’kaf z’chus that all seemingly frei Yidden are really frum, and the reason they drive cars on Shabbos is because they’re all in Hatzoloh, the reason they eat tarfus is because they all have ulcers, and the reason they don’t dress tzniusly is because they all have rare, painful skin conditions.
Yes, but you can say that the non-frum jews don’t know any better; so you can say that by the Sheepshead Bay Theater goers. Also, there are halachikly permitted movies.