First of all - I hear you and I get it
However, you can't win a Super Bowl if you don't win more than you lose and get to the playoffs. Secondly, the quality of your starting QB and Super Bowl wins are linked - but only to a degree. It takes a lot of things to a) get to a Super Bowl, and b) win a Super Bowl. When it comes to successful/franchise QBs (and yes - I do define that a lot more broadly than 'how many Super Bowls has he won?'), you are far more likely to hit on QBs taken with early picks than later ones. I think the obvious reason for that is that QB rankings coming out of college and assessments by professional scouts are the best measure we have of who the best QBs are. So teams take their guys - early - based on those assessments. Generally speaking, better QBs get chosen earlier than average ones.
That can be true while also acknowledging there is a high bust factor. There is an even higher bust factor for QBs taken later (no one ever seems to acknowledge this part). Guys taken very early are boom or bust. Guys taken later are almost always bust. We seize on the exceptions (Brady, Russell Wilson, Brock Purdy) but I think we have to admit they ARE exceptions.
The argument against trading back is clear. Given the above, it's better to pick a QB earlier than later, most of the time you are wise to swing for the fences when you have a top 3 pick. You don't have those often. And we should know more than any other fanbase just how effing hard it is to find a franchise QB when you don't have a top pick. Someone will swing big this upcoming draft and hit a homerun. I just feel that the fact that many may swing and miss is not a reason to step away from the plate.
Anyway, I am just making general statements, not advocating for a particular course of action in the draft. I have no idea what the right move is.
Good discussion brother.