Glad to see others have also keyed in on just how lame this ad was.
My immediate thought was, if you (the guy doing the voiceover as the father) are so mentally deficient that you can't even put together a four sentence paragraph of your own original thoughts for fanmail, then what hope do you have of doing anything else as a functioning adult?
Worse yet, what does this teach the kid?
You are correct. Google serves ads from the same domains as the actual legitimate content therefore sending those requests to null via DNS blackhole would simply block YouTube entirely. UBO and other browser extensions strip out or work around the problematic code itself to render a functioning page without the ads.