Are you sure people spending their time voluntarily to write on a Mac Forum are not interested in the topic itself , in this case: what Apple makes???
Indeed. The problem is that many people here
are interested in running MacOS but that none of the very limited range of hardware that Apple makes to run it on fits their needs.
It's probably true that the people complaining about the Mac Pro
aren't interested in buying a $10k, 28-core Xeon workstation with the expansion potential for quad GPUs, dual afterburners and 1.5TB of RAM. The problem is that Apple offers nothing between that and a tricked-out 5k iMac all-in-one (better like that 5k screen, because it's glued on).
OK, I left out the lower-end $6k model - but the actual spec is worse than an iMac and what you're
paying for is the potential ability to add $10k+ of bucks worth of expansion... and, yeah, if you do a "like for like" compare with those $4k systems from Lenovo, Dell etc. they
won't have 2 PCIe x16 + 8 PCIe x8 + enough slots for 1.5TB of RAM (although you'll need to replace the base CPU with a $7k M-suffix model for that...) What they
will have is the ability to put in a half-decent, mid-range GPU or two, maybe a specialist I/O card, and a decent amount of internal storage.
I'm certainly not in the market for a 2019 Mac Pro... I'd
absolutely have been in the market for a $2-$4k tower Mac, and
did buy a $3k MP 1.1 in 2006, and would
probably have bought a Trashcan in 2017 (I ended up getting an iMac instead) if they'd been kept up to date.
As for real "pro" users (whatever that means to people) - I think the only ones left are the ones that are completely tied to MacOS by existing workflows and simply can't contemplate switching (...and I'm not dismissing those as valid reasons). I don't see what other permutation of misconceptions would make people build their business around Apple stuff after they (a) dropped the Xserve like hot garbage, with no credible alternative (b) let the original Mac Pro wither on the vine for a couple of years (it was actually discontinued in Europe, for want of a plastic fan guard to meet regs, a year or so before the Trashcan launched) (c) completely replaced it with the radically different, workflow-changing Trashcan (d) Dumped FCP in favour of the not0then-quite-complete FCPx, (e) never upgraded the trashcan in 6 years (f - most likely) planned to replace it with the all-in-one iMac Pro... Anybody who didn't take the hint and
did hang around for the 2019 MP was rewarded when, 6 months later, Apple announce the Apple Silicon transition without any
hint of a roadmap for how Apple Silicon is going to work for those who
do need the power of a higher-end MP setup.
Which, I suspect is the problem: in the short term Apple can make more money selling hyper-expensive kit to a shrinking pool of pro users. You can see this from the Mac Pro marketing which was
all comparing it to trashcans and iMac Pro - no attempt to compare it with other options to maybe attract new customers (...just the inconsequential, but ridiculous and un-forced announcements of $700 wheels and $1000 display stands which
have helped make Apple a laughing stock amongst PC users).
Otherwise, sticking MacOS in a ~$2-3k mini-tower system (especially during the Intel era) and putting it in a nicer-than-average box and selling it at a modest premium over comparable PCs, would have been
so easy to do and totally solved the problem for many people... Back in the day when mini-towers were the go-to choice for most consumers, it might have cannibalised sales of iMacs and laptops, but today it's only people who
want a pick-up truck who will buy them and, if the market is limited, so what? The R&D would be much less than the current Mac Pro, let alone a MacBook or tablet. Apple is something like the #4 largest maker of personal computers - and even your friendly local OEM manages to offer a more diverse range of PCs.