I am trying to remain positive, but... There was nothing positive about the video you shared.
You assumed, on the word of a person that is recovering from a lethal and/or crippling disease and by her own admission is very tired, that all the information you had received in the note card from that person is correct. Based on that assumption you made an highly emotionally charged 20+ minutes long YouTube-video supporting the "allegations" made in the note card.