True if the intensity is too much. The same can be said from industrial air pollution, traffic, the neighbours cooking food that I don't like etc. etc.
Yes cigarette smoke in a car is too strong, but smoke from the neighbours? The smoke won't hurt you, yet you can smell it. There are many smells in the world, and many tastes.
If it is bad or not depends on the health of the population at large, the cost for society in terms of health, money and quality of life.
In that sense, I would asume that substituting marijana for tobacco, would be an improvement.
Just like with cigarettes, forcing others to smoke passively should not be allowed.