I fully sympathize with your situation, but starting multiple threads in quick succession on the same topic won’t make Larian respond. The same can’t be said for moderators, though, who are more than happy to explain the reasons behind forum bans.
All that said, +1 to your post. Staying silent on a product that’s been paid for and remains unreleased is in an ethical gray area, at the very least.
Edit: FAQ says mac version is currently available (though it’s a little unclear)
What is Baldur’s Gate 3 release date?
[…]We’re also targeting September 6 for Mac (via Steam, GOG, GeForce NOW) — to be confirmed. Additional platforms TBD.
What platforms can I play the game on?
Baldur's Gate 3 is currently released on PC, via Steam, GOG and Nvidia GeForce NOW.
Can I buy the game on the macOS App Store?
The macOS version is currently only available on Steam and GOG.
2nd edit: No tweet so far on the topic. One would think that would be part of the Mac launch.