Well done, you've completely missed the point.
The main point is, these cyclists totally risk their lives. That is one pointless risk. Many get killed daily, many more injured. Is that not a good enough reason to ban them from these roads?
You should pay a visit to South West, where visibility ahead is frequently obstructed by numerous turns and bends, as well as trees. The A roads here are rarely dual carriageways, they are more like a slightly wider version of B road. We have M5 if we want a decent road

Did I travel at the max allowed 50 there? No - more like 30 as I was expecting trouble. Did I put him at risk? I had to break, but there was no immediate risk to him at all (this is going up a hill). Only when the other car zoomed in at 50 things started looking somewhat dangerous. Did the cyclist take any notice of the events? No, he completely ignored it and kept using the whole lane. Well done!
Before you continue to slack me, I may tell you that I used to cycle a lot and plan to do some this year. I do make use of cycle routes, and never try to get in anybodys way like that, jump lights, etc. If there is any danger I just move to the safety out to the side. Why risk it?
The trouble is, there are plenty of cycles routes in the South West, and they would totally ignore them even if they were along the main road. I can't understand that.