I remember watching when Jules Bianchi had his fatal accident and I remember where I was when I read of Antoine Hubert had his fatal crash and I remember watching Romain Grosjean somehow walk away from an incredibly violent crash. Each one made me seriously consider giving up on the sport, but the racers racing and each crash has led to massive safety improvements.
I hope there is never another fatal or injury accident in motor racing. In F1 there was a long gap between Senna and Bianchi, let's hope the next gap never ends.