I did not “support” Red Hat but I was pretty vocally in opposition to most of the reaction to it. I found the willful inaccuracy and even flagrant dishonestly from the “community” close to disgusting at times. So, you may be including people like me in your comment.
In this case, it seems very straight-forward that NVIDIA is in the wrong. Not just ethically but legally as well.
My own read is that some of the people slamming Red Hat are defending NVIDIA now. Coming away from that experience, I the over-arching principle that many adhere to most is simply whatever is best for them. Red Hat was wrong because people felt entitled to something. The kernel devs are wrong ( and NVIDIA right ) because people feel entitled to something.