I get where he's coming from but surely he has a role to play in ensuring that social media doesn't just become a platform for hateful ideology. By maintaining a positive, loving and sharing presence there, he's helping to provide balance. If we all gave up social media, it really would just become a haven for hate. Social media isn't going away any time soon.
Having said that, perhaps he's hoping that if famous people start stepping away it will encourage the platform owners to take more responsibility for pro-actively managing what they host.