I don't see the logical conclusion of breaking up from that. Even if you have 2 separate companies - Instagram and Facebook - neither should have that power. Twitter shouldnt be deciding what is political advertising either.
The logical conclusion is that the government steps in write laws on what social media should do.
The org chart shown in the article is old by 2 years and seems like an oddly selected on for that time. A current org chart would shown a different split between men and women.
You would be surprised. One of the other criticisms currently is that FB doesnt share data with academics to do research as freely as academics would like.
As a FB employee, I hear this sometimes - I can't take your point of view as you work at FB, instead of debating the fact straight up. It's just an Ad Hominen attack in a different form.