Toxicity is still what it was. You would need to ingest/smoke nearly your body weight in THC for it to be toxic.
As for addiction, it is no more addicting than any other pleasurable act. There is no other chemical hook other than your own pleasure receptors, unlike cocaine which does.
Is it good for you? No. But it is a lot less bad for you than say hard alcohol. It also has some positive side effects for those dealing with chemo, glaucomo, etc...
Either way, it isn’t something the FedGov was given an Art 1 Sec 8 power to interfere with. Leave it to the States.
“it is no more addicting than any other pleasurable act”
This is highly misleading. I realize you don’t get chemically addicted to marijuana. Also, like with gambling and sex, for instance, it becomes an obsession only with minds specially adapted for it, while others can take it or leave it as if it’s oreo cookies, or something. However, unlike gambling and sex, which CAN affect the pleasure centers of your brain, marijuana WILL do so, because that is specifically what it does.
Activities can be more or less addictive depending upon much pleasure they give you, which will depend on your varying moods. But psychotropic drugs like marijuana are mood alterers, and they affect the central nervous system reliably no matter what your previous state (unless you happened to be already high, but let us not get bogged down in silliness). To say it is no more addicting than other pleasurable acts, therefore, is nonsense. It is more consistently pleasurable, and therefore more addictive than various other pleasurable acts.
This is all beside the point. Marijuana is not illegal because it is addictive. Alchohol, for one, is clearly more addictive. Marijuana is illegal for no good reason.