I'm less familiar with the history of the Chamber of Commerce - but going just from the article it read as if the Chamber of Commerce almost exclusively backed Republicans with the occasional token Democrat over the past twenty years - with some pre-1990s complexity regarding a small-business/multi-national business conflict that led to a deviation.The crazy shyt is that "ESG" is mostly just greenwashing bullshyt. I have little faith that there's very much decent that's going to come out of companies' self-imposed ESG standards, outside of unicorns like Patagonia it's just a publicity scheme to keep the public heat off of them and avoid regulations. That fact that Republicans want to oppose even THAT bullshyt is pretty fukking weak.
How does that differ from the agenda of centrist Democrats?
I don't know about the rest of the country but here in California I've repeatedly seen the Chamber of Commerce endorse Democrats and Democrat-sponsored legislation, they usually support the Dems on most spending for infrastructure or anything else where Republicans are being obstructionist for dumb reasons. The LA Chamber of Commerce even endorsed Newsom during the recall. And up in Portland the Democratic mayor got elected due to a very cozy relationship with the Portland business community including an endorsement from their version of the Chamber of Commerce, and the Democrat Betsy Johnson who is running for governor as an independent after some 20 years as a Democrat House member has always supported corporate shyt and is completely bankrolled by billionaires.
Oz is facing Fetterman though, who is legit on economic issues and by no means an establishment/centrist. No Chamber of Commerce wants to see someone like him in power.
I don't think your analysis (particular on regional issues) is wrong, but I do think its hyperbolic to see the CoC as more of a centrist Dem institution than a GOP institution