Yeah, they gotta get back.
Did these reported incidents get properly investigated? One would have expected formal criminal charges, a trial, sentencing, etc.
Men were charged in the Louisiana beating and the Massachusetts church fire. The Massachusetts case came to trial -- likely racial motivation, but no firmly established connection to Obama's election. No word on how the Louisiana case was resolved.
There's a difference between mass protests which seek publicity and small scale acts of violence by perps who don't want publicity. Of course the violence is worse, but it's less likely to make the papers. The driver in Chicago who was beaten by assailants yelling "You voted Trump" was similar to the incidents the writer relates from 2008. Not much news about that in the media either.