No worse than pot is nonsense.
Cocaine is more physically addictive than anything, yes even more than nicotine, there is a mountain of scientific evidence behind this including the famous rat experiment with the coke and heroin.
You can smoke pot daily and not get addicted. If you do coke like that, you will get addicted, and it will fuck you up.
Alone among drugs in its class, coke prevents the reuptake of dopamine and deadens the dopamine receptor to things other than coke. it is alone in doing this.
You wanna do it? hey man, your body. But you can;t say the words "pot addict" and "coke addict" the same way.