I had always advocated for RedHat... Until IBM bought them. I tried to stick with them after, but they've completely ruined their reputation with this move. Before, I would always endorse a RedHat purchase order at the companies I work for. It always saw it as an opportunity to give back.
I understand that RH has developers who contribute to the underlying foundation of Linux. But so does Debian, Ubuntu, Oracle, Amazon, Microsoft, SUSE, etc, and the hundreds of developers who devote their spare time to supporting their code, which, like everyone else, RH relies on beyond the scope of their own developers.
And so now, when RH sits at the other end of the table at the next inevitable sales call, I will no longer advocate for them, as they have soured my trust in them to do the right thing and stand up for open source as they have in years past.