MIAMI — The vitriol on the Miami Dolphins’ YouTube channel was a mad symphony of excess by midnight Sunday as postgame interviews from coach Mike McDaniel, quarterback Tua Tagovailoa and others were shown live in the wake of the crushing home loss to the Buffalo Bills. The scroll of comments shown on the right side of the screen was a malignant parade of hatred that made me question the humanity of sports fans. Or the sanity, at least. Some of the comments likely were from Bills Mafia gleefully stoking Miami’s misery, but most surely were from Dolfans whose frustration was a tea kettle on full…