He banned smoking tobacco in his country because of his own personal feelings towards tobacco that day. Imagine having smoked your entire life and suddenly going cold turkey. Now imagine a country where 3/5 people went cold turkey all at the same time.

Can you see why making a decision like that is wrong? A decision that affects everyone (ban on smoking, ban on free discussion) is more dramatic and selfish than just taking care of yourself (quitting smoking without banning smoking for your whole country/not commenting on posts that make you upset)?