I don’t embed any sharing buttons for one big reason: they look cheap and desperate. They would devalue my voice and reduce my credibility.
For me, every other issue — clutter, load times, scrolling speed, privacy, security — is secondary to that.
When we want to reduce things, whether it be social buttons or sugar consumption, figure out the primary reason to drop it and then realize the other benefits of getting rid of that thing. Believing the reason will make it easier to be OK with editing that out of your life and identifying the benefits will keep you on the lookout to track that your edit has been successful.