The question is how could a clear thinker think this isn't arguable?
The question is difficult for me to understand. I'll try.

1]This question is for everyone and not just clear thinkers. Foggy thinkers have an opinion about clear thinkers too. You go to the doctor, the doctor knows more then you,
you act on his judgement because on the subject of medicine the doctor thinks more clearly then you. He knows more facts then you do so you believe in his opinion or you get a second opinion.

2] For a statement to be "not arguable" means the statement must be a fact. i.e. 2+3=5 is a fact, water freezes at 32 degrees is a fact, the moon revolves around the earth is a fact, evolution is a fact, global warming is a fact

This is where it gets sticky. Some opinions just look like facts.

Some of the statements expressed in the video are just that, opinions not facts.

To answer a poorly worded question. Yes
Clear thinkers can argue with the opinions expressed by the young woman.

As soon as the girl stated an opinion, you could stop the tape.
Even if you agree with here.