This is like being in a room with people who may be known to possess drugs and then running your mouth when the cops bust in. "Maybe cocaine isn't so bad!"
Just shut up. Plead the 5th. "Talk to my lawyer, representative or whatever." Take your right to remain silent because any stupid sh you say can and will be used against you.
Stay in your lane, especially as a representative of others. If you're going to run your mouth, then at least wait until you get home and do it on your own equipment using personal channels. And even then you still might be representing others.
Opinions aren't cheap. They have a real cost. You should be well aware of what those costs might be and the risks you are facing. Then go ahead and give your opinion if you're willing to pay those costs. This is a skill everyone needs to have, but many don't. Even if he did the calcs and decided the cost was worth it, he still did so as a rep of an org which didn't share his values.
Gnu must be a different situation and a different culture. I assume he would have already been forced out if it were possible. Maybe they have an air-gapped room in the basement with a desk and a red stapler.