This isn't even about "Feeneyism" per se. OP described people committing mortal sin. Yes, they would be lost if they died in that state. Yes, >90% of all the people in the world right now are likely not in a state of grace. That has absolutely nothing to do with Father Feeney. Nor does the fact that Father Feeney had a "narrow" view of EENS change the fact that these people are in a state of mortal sin. Stop blaming every darn thing in the world on Father Feeney.
OP and several other posters on this thread reveal once again that EENS-rejection comes from a place of emotion rather than from theology. Yes, it's very sad that fornicators go to hell (if they don't repent). But are we to doubt that now as well just because it's sad?
Very well said, it is a red herring to direct this thread to the topic of Fr Feeney - some of our forum member seem to have some sort of obsession about him. The only thing I would disagree is that the OP does not reject EENS, he clearly holds (or held to, its been 5 years) to strict EENS, he just struggled with the thought that this means that majority of people alive are on the way to hell.
Whether one is a "Feeneyite", "BoDer-for-catechumens" or "Cushingite", it has to be recognized that very few people these days are in the state of grace. Majority are unbelievers (by definition cannot be in the state of grace), heretics or lapsed Catholics.
I honestly sympathize with the OP - I also struggle with these thoughts, and I hold to EENS. However, he said nothing about prayer, which I think is highly underestimated these days, even among faithful Catholics. Yes, you can't evangelize everyone, but you can pray for many people who otherwie you can't reach. Our Lady of Fatima said that many souls go to hell because no one prays for them. Sacred Scripture is filled with passages saying about power of prayer, just to quote one out of many:
James 5:16 Confess therefore your sins one to another: and pray one for another, that you may be saved. For the continual prayer of a just man availeth much.
Do your best to share the Catholic faith with other people, and pray for those you can't reach. Not only for family, friends and relatives, but everyone you can think of. Pray for the strangers who pass you by at the street, if you are on a bus say a prayer for other passangers and bus driver, if you are watching a soccer game, say a prayer for the players and fans, etc. etc. We never know who will be saved due to these prayers, for some they might be crucial, especially in this pagan world where the Gospel is hardly being preached.