Try picking the “Disabled” option for each dropdown.
I believe that you can choose it in the list of options that appear when you press Proaudio, for example
I had this problem too and solved it by just telling the OS not to use those “devices” through that same same GUI in the picture.
He makes some fair points but I fully agree with your sentiment.
Had this man made a less confrontational and more educational video, he would be much more widely regarded as a fair source. Alas, he thinks the raging grants him clicks