The video stirs up emotions, on both sides. Megan Kelly (FOX) seemed very troubled about "boys" (t-girls) in girls bathrooms, "girls" (t-boys) playing on a boys football team and "boys" participating on a girl's gymnastic team. Apparently she was hitting the hot buttons - boys in girls bathrooms, girls being pummeled in boy's sports and a boy's physical advantage in sports when competing against girls. There was no mention of girls in boy's bathrooms.
What Kelly failed to acknowledge was that TG kids, who have been diagnosed as TG, would most likely be participating in some sort of medical intervention (when puberty starts to set in) to prevent birth gender maturation and/or aid identified gender maturation. This would, of course, diffuse a lot of critic's objections.
Kelly also failed to acknowledge that the girls in the girl's bathroom wouldn't be seeing a boy dressed like a boy walking into "their" bathroom. She phrased it so the image is a boy walking into a girl's bathroom. It was very misleading to the uneducated.