Plenty of people are additcted to tobbaco and more importantly alcohol though and they're both legal and widely accepted by society. In fact, statistics related to alcohol abuse are far more terrifying than these related to drugs. See for yourself:

http://www.cityvision.edu/drug-and-alcohol-abuse-facts-and-statistics

Also, check the links I posted earlier, it's hard to argue with facts. Countries where drugs were legalized / decriminalized benefited from it in a variety of ways.

Also, as for the claim that no one gets addicted to bleach, you must have not heard about this charming lady: https://www.youtube.com/watch?v=eBfw5NMgizU