That still doesn't answer "Why don't the various factions want to bridge the gap?" and if you are trying to be a Catholic in good standing then what? Are we saying that when it comes to this confusion do what you feel, even if you might be mortally sinning based on what others are saying? Within two hours of my house I can go to an independent Una cuм Mass, I can go to an SSPV, I can go to an Independent non-una cuм, I can go to the SSPX, I could go to an RCI, I can go to an FSSP, and many indults. Yet some will say I am mortally sinning if I attend others. If I just determine that I am not and go where I want, then I become my own boss and that is not good for my soul either. I do what my husband wants, which is fine with me. But I want all the rest to make sense. I know "Crisis in the Church" be patient. Again it is just so frustrating. They are all trying to be Catholic and do what Catholics did before VII, but they have no bridges between any of them. On top of that I have to raise Catholic children and tell them don't worry about all the in-fighting hopefully that will work itself out eventually. 

Plenus answered about the gap. I would add that the gap is actually disunity caused by, among other things, a lack of authentic Catholic teaching. The authentic Catholic teaching has been largely inundated and adulterated with opinions - from all over.
But you have many options within two hours of your house, seek out a priest for your spiritual adviser. I cannot tell you what to do, I *can* tell you what I would do and I can tell you what I would *not* do, and what I would avoid.
Knowing nothing about you except from some of your posts, I presume you are seeking truth but a bit lost. First, I would avoid all things NO, this includes the diocesan indults. I would visit the above trad chapels near you and speak to the priest at each chapel, even if it's in the confessional, until you are satisfied you found one who is able to actually able to help you with sound spiritual instruction.
I could write a TLDR but I would offer the advice that you need to do a lot of praying especially the rosary, frequent confession, Mass and communion. For us, we had no options you have, heck, my mother would have catechism for about an hour a few times a week from the Baltimore Catechism, sometimes we listened to sermons/talks given by good priests, or read The Lives of the Saints, but we prayed together every single day the rosary and the Novena to the Holy Ghost and traveled long distances for the Mass and sacraments when there was one available.
We all need to do something for our faith and those in our care - and I don't mean go to abortion protests or the like - I mean pray, seek, ask. Avoid all bad influences of society, friends and relatives.