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People feel discomfort while listening to these videos because they feel like they are being persuaded by a weak young man to believe things he himself does not believe. This is caused by:

1. High pitch voice. Either it is modulated or not, the voice informs us that a person we are listening to is low social status, therefore subconsciously we assign lesser significance to anything he says.

2. Infomercial-like intonation. Guy may be professional narrator, and his intonation is like you would find in advertisements where someone tries to sell you something really worthless. So people again subconsciously tend to "categorize" this kind of information as unwanted and are used to filtering it out. The effect is strengthened by the choice of music.

3. The narrator clearly has no understanding (or gives that impression) about the subject he is told to talk about. This is subconsciously felt by people through his intonation and the way to put emphasis on random words, and that also translates to two things: again reminds us of infomercials (meaningless talking to occupy time) and malicious persuasion - he wants me to believe in something he does not believe (actually does not understand).

This all adds up to our brain signaling something is wrong, therefore complaints. There is more to education than content.