I don’t think there is any action Pichai can take on this that wouldn’t hurt vastly more than a few students walking out of his commencement speech. He is a man well used to people complaining about his policies. Googlers do so all the time internally, including on this same topic, and have been for years. If gestures like this were going to move him, he’d have been moved already.

That being said, I don’t have a problem with people standing up for what they believe, even when it has no practical impact. It’s good character building. I would expect that Sundar is similarly unbothered.