If we were proven to be causing far more speed related crashes than other nationalities, I would have no problem with that.
If a certain group of people are causing excess problems, why shouldn't they be exposed and targeted?
I am against targing people for no valid reason.
In your example, one of the best ways to get English to stop speeding is to have English people recognise the problem and how it affects them. This would start them self policing by calling out those among us who were the problem. Peer pressure is very powerful.
To bring your question back to you, if English drivers were caused far more crashes than other groups with all the extra expenses, injuries and other problems, would you want to target us in some way?