It's more likely the channel was brigaded by r/The_Donald supporters or 4chan than YouTube actually doing anything. Their systems are so automated, stuff like this happens all of the time - the users wield an unseemly huge amount of power to knock content offline.
So, lessons learned: 1) Keep backups of everything you'd upload to YouTube. 2) Vimeo.com account 3) Petition YouTube to revamp their content policing strategies to keep humans in the loop instead of algorithms knocking content offline because a mob with pitchforks decides they don't agree with you.
So, lessons learned: 1) Keep backups of everything you'd upload to YouTube. 2) Vimeo.com account 3) Petition YouTube to revamp their content policing strategies to keep humans in the loop instead of algorithms knocking content offline because a mob with pitchforks decides they don't agree with you.