That was a big change on the Left under Obama. They no longer recognize 'loyal opposition', or a simple difference of opinion. If you don't agree with them in every single thing they believe, today they don't want to debate you. They want to kill you, even if you a Leftist like them.
They not longer tolerate a difference of opinion, even in there own ranks. Everyone is required to be in lock step on every issue. And if not, they resort to violence.
And yet, they call us 'the fascists'. The Left in America has become delusional and unstable. We saw their fanaticism very clearly with the Trump election.