It's easy for things like Adobe or Facebook or Twitter because they're mostly one thing.
The others are kind of complicated to me. They're so large that the sins kinda get diluted. How many products does Microsoft have? How many dark patterns do they need to make use of among those products before you can no longer justify working for the corporation as a whole? Can you work on Microsoft Research because the XBox Game Pass subscription cancellation is problematic? I think I could justify that to myself just fine, but I imagine that's a personal call.
I get the gist of your comment, but your specifically chosen example of Microsoft is a bad one. It's not just MS's XBox subscription is bad by itself. The recent news about the forced inclusion of Recall. The forced inclusion of ads into the OS. The horrendous data collection by MS. The list goes on and on that would put Microsoft on a egregiously morally bankrupt company on all levels.
I worked for Adobe and it was very much _not_ "one thing". My work there involved literally tens of thousands of software services across three major segments and hundreds of products.