There are many in powerful places that won't be happy until all cars are electric, maximum speed 20mph and we have to employ someone with a red flag to walk in front of them. That way there would be no tax collected from fuel sales or speeding fines, but there will be no dole queues or people gaining all sorts of unemplyment benefits, and no need to maintain roads, so the books will balance.
Fortunately, I probably won't be here to see that day.
It isn't speed that causes accidents - it's something else, usually driver error or sometimes mechanical failure - speed has an effect on the outcome but is not the only reason for an incident - there have been fatalties at less than 30mph and equally people have walked away from 100mph incidents. If speed was the cause then surely many of those who were deemed to have been over the limit would have been involved in an incident - it seems none, or very few at least, were.
Drive safely - concentrate on what is front of (and around) you, instead of watching your dashboard.