Oh, I don't mean to say that Apple can't, but it's niche insofar as Apple's overall business, where it's making beaucoup bucks on massive categories that make their smaller pie slices look tiny. Taken on its own I'm sure the Mac Pro business by itself is small but profitable, and arguably the whole problem we're dealing with is that Apple has gotten so big it's harder to keep focus on those smaller segments. I would argue Apple was never a professional user's company, at least with any intent: they happened into the desktop publishing game and then education and that kept them afloat in the lean years, but taking their history as a whole I'd say the early 2000s Final Cut/Logic/Shake era of clever towers and software was the aberration rather than the rule, it was just their consumer products finally had runaway momentum and the increasing power of computers meant that other products beyond the pro ones could do real work, which is how Apple ended up briefly thinking an iMac Pro would be enough to satisfy enough of its customers.
And I agree with you, I think the best option for Apple is to broaden the possible use cases of the Mac Pro. My point is that I feel bad for Maikerukun, because even among prosumers or professionals, who are a small number of the total customers Apple serves, the people who can afford or want a Mac Pro is a small portion. Most "pro" work by pure numbers is probably being done on MacBooks, since notebooks have been the best selling category for years and years now. I do a lot of my work on a iMac (we're now getting Studios in to replace the old ones.) If they went back to a $3K or $4K or even $5K starting price (hell, you could throw in an M2 Pro instead of Max!) and let the machine be the endlessly configurable Mac, that to me seems like a better strategy than what they wound up with in 2019, which was to make a high-end tower while leaving people who needed expandability but didn't need it wrapped up in ULTIMATE PERFORMANCE FOR ULTIMATE PRICES high and dry.
In some ways I feel like Apple's track record here leaves me incredibly confused as to where they would go. With the Mac Studio (a new desktop computer category from Apple for the first time in, what, coming up on nearly two decades?) there's more of a need for an expandable machine than there is a powerful machine, outside the high-end users like Maiker who can absolutely use whatever power is thrown at a task and crave more. I guess the question is would Apple consider being flexible enough that it could capture those different market segments? (certainly the $6K price is partially a function of everyone paying for the capability to expand their machine to ludicrous levels, but if you don't need that you've got a massive upcharge from jump.) And if they don't want to deal with even the high-end workstation setup under Apple Silicon... why did they make the 7,1 Mac Pro in the first place? Why put all that effort into rethinking stuff like MXM modules if they were creating a computer that had no future at Apple?