How should we approach this?
That depends on the context of where that fix is going to happen. Theres different answers if the context is "5e" versus "OneDND".
Thats what I was getting at, if poorly, about not framing complaints as asking for help.
If the context is 5e, the myriad ways suggested by me and others (like Improvise Action, more conscious multi-dimensional adventure design, etc) is the way to go. Those are the tools within 5e that exist to address those issues.
If its OneDND, theres a dearth of options, and plenty have suggested ideas there too. The big difference is that these suggestions all aim to negate the problem being a problem at all, rather than work around, through, over or under it.
The only remaining contention that connects these two is that, as argued before, if what exists already isn't cutting it, then the issues causing
that should be addressed first, and then the question of Martials can follow those fixes.
Like with IA; it can and should be integrated better as an option for players. DCC shows at least one model for what that can look like mechanically.
And heck, I could even point at the new actions in 1DND that support this is how you can address these issues. Those new actions aren't really anything new in the system, but their better promenance as explicit (if open-ended) options is better for the game.
And Id even go as far as to argue none of these issues would even be such a contentious and hotly debated topic at all if 5e just had better DM support from the get go, even if all of those issues were still present, just because then a lot of the consequences of the problem just won't reveal themselves outside of niche situations and deep dive examinations.
