We must accept the fact that many, many will be lost and suffer in hell. That is fact. I am not happy about it, but have come to accept it because our Lord said as much. If it grieves us, imagine how He weeps over it.
I think our problem is with cultural Catholics, who simply inherited the practices, but without the catechesis or the discipline. They attend mass as a drill. Problem is, the mass is not a drill, and it is not catechism, it is the sacrifice. The homily is a reflection on the scriptures, but is not primarily for teaching rules of the faith.
That is a huge problem, but faithful and observant Catholics are called to be examples for them. I will not blame Vatican II, but one can certainly lay blame at the feet of those who poorly implemented the reforms, and who tolerated sloppy attendance, sloppy dress, sloppy music and sloppy liturgical practices as the “new norm”. But, that generation is passing away and reform is in place and more is coming.