In which cases anyhow would they have been a trustworthy content. You could easily take real videos out of context which people were already doing to mislead.
Ultimately you should reason and investigate deeper to hold somewhat accurate opinion on anything.
Most media and news out there already is where the agenda comes first and then it is about compiling cherry picked content from wide variety of content as evidence for that agenda. And you can find content to support any agenda already.
It is a simple algorithm of:
1. We want to prove X.
2. From millions of datapoints we pick the 100 that support X the most.
3. We write an article on it.
4. Most of our readers already agree with X so they will be happy about it. No need to go deeper.
5. Anyone who doesn't agree would probably not read our platform anyway.