Excuse me?

Public road is public road.
These drunks are using the same roads you do.
Doesn't matter if it's a car, a horse, a bicycle, or a cart.
They are controlling a vehicle while under the influence.
That makes them a threat to the safety of everybody else that wants to use the road.

That is NOT acceptable behaviour. It is irresponsible and antisocial.
If you want to get wasted do it at home.