Well reflexively referring to the DEFINITION of a WORD is not an argument. When there are no dedicated cycleways, either pedestrians share with at least some cyclists or scooterists or you have children cycling on the road.
The same "children cycling on the road" argument (which is only dangerous if the cars on the road are going faster than the children) can be applied to children walking on the sidewalk where people cycle at full speed.
2) Cars pose a risk to cyclists, even if cars are going the same speed, which is a fictional scenario, as many motorists don't go the same speed as cyclists and instead overtake them dangerously ASAP.
3) The risk posed by cycles to pedestrians is far less than the danger posed by autos to cycles.