'More recently, I’ve seen credible people working on ideas like pharmaceuticals for intelligence augmentation, genetic engineering, and radical life extension leave San Francisco because they found the reaction to their work to be so toxic. “If people live a lot longer it will be disastrous for the environment, so people working on this must be really unethical” was a memorable quote I heard this year.' That's toxic?…
The idea that you should be able to say or do whatever you want and also be shielded from criticism of those ideas is silly. Especially when you're some of the most rich and powerful people in the 21st century. No-one is stopping you from doing anything, they're just questioning you about it. If you can't (or don't want to) answer those questions then maybe you should consider why that is.