Do you consider YouTube a news source?
I would expect YouTube only to report honestly (as a news source) for things align with it's commonly held beliefs.
YouTube endorses everything it does not censor.
edit: And you should not put blind trust in any "news" organization either. Every observation deserves your full cognition to figure out what is plausible, consistent, implausible, inconsistent, let alone "true" or "false".
And yeah, sure, everything should be judged on it's merits, however there's simply not enough time in the day to independently verify all facts. It's much easier and generally reliable to start with the mainstream news sources like NPR, who we can generally assume to be trustworthy.