As a corporate entity, Youtube seems to have an agenda that generally supports illegal/massive immigration, and that might be due to the financial interests of their corporate parent Google in having a large supply of lower-cost engineers.
They repeatedly promoted the 9500 Liberty documentary series, one that was supportive of illegal immigration in Virginia. In partnership with the Pulitzer Center, a vapid 4 minute video about Postville was made a finalist in a contest. And, the immigration-related questions that were selected for their partnership with CNN to conduct debates were weak setups that simply allowed the candidates to give stock responses.
For those debates, they did not select my tough questions, and when I replied to the CNN/Youtube-supplied videos with responses pointing out how bad the questions were, CNN and/or Youtube deleted them from the list of responses and did not reply to my request for an explanation.