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.