You started a thread where you are convinced your selection suits you. You are already aware of some of the main points of discussion (arguments) as to why some use fluorocarbon as a leader. You're asking for someone to change your mind towards a different point of view.
This is asking for a collection of opinions, various experiences, and specific examples may be provided. At the end of the day, it boils down to how open minded are you to using fluorocarbon as a leader and are you willing to try it and come to your own conclusion based on your experience with it?
Totally not trying to be an a$$ here. Just looking at this from the root of the reason of the thread. You're wanting someone to enlighten you right? You can read lots of articles, lots of people's experience and recommendations but you still have to try it for yourself to see if you like it or not. Then, you will no for sure if you hate it or love it.
I personally use straight fluoro on spinning rods and baitcasters most of the time. The only rods that have mono are specific to topwater. I used to use copoly years ago and the lines I used (Yo-Zuri) was not abrasion resistant and snapped easily (at least it did for me......just my experience with it).
I know use PLine CXX and I've been wanting try try Maxima line. I also use Inviz-x for my fluoro of choice. I sometimes tie leaders but, I don't enjoy leader knots. So I just spool the entire thing with fluoro and move on.
Yes, heat can occur when tying a knot but wetting the line and being careful often solves this issue. So at the end of the day, you have to give it a try. Take one or two rods out rigged based on the experiences and suggestions here and then take those two rods only on a trip. See how you liked it. See if you didn't like it. ANd be sure to use them in the right application. Dragging football jigs through rocks with a leader is not a good application in my mind and begging for lost baits. Some can do it well, most struggle.
Hope this helps. Just trying to say, you need an open mind from the start. THen you can arrive to a conclusive point of contention based on your own experience. I think that is much more valuable to you as the user.