In my opinion roads, police, fire services couldn't be built/services be offered without government involvement!
Opinion based on ignorance.
There are already such things without government involvement. Hell, my fire department is private. Sheep only see the sheep's ass in front of them and think that that is the world they need to follow.
Again, people are ok with using force against humans as long as there is some benefit. Like with slavery.
Being a free citizen is not the same as slavery. You may argue that the difference is just one of degree - but that degree is so vast that that you may as well compare shaving to being skinned alive.