Modern Orthodox were never on the derech if someone knows better then not to go against Hashem and he does it anyway then he is off the Derech Hashem.
A modern orthodox person is worse then some1 who is completly off (if they were never on to begin with) bc it seems that modern orthodox ppl know the right things to do and the proper ways to serve Hashem but they choose to live a Modern Orthodox lifestlye as oppose to a regular Orthodox lifestyle they choose to be off the derech knowingly…Hashem should have mercy on the modern orthodox people that know they’re doing wrong and continue living there foolish ways living in denial of true service to Hashem…God willing they will realize that they are fooling no one except themselves and start to serve Hashem properly.
Transport back in time 250 years and the Vilna Gaon said the same thing about Chassidism