You don't need to be a drunkard to drink alcohol, and you don't need to be permanently toxic to exhibit toxic masculinity. I dislike the term (because people immediately get defensive) but the concept is definitely useful and describes a real phenomena.

It's not about masculinity being inherently toxic, it's about toxic expectations men are expected to fulfill by the society.

And you don't have to have your human rights infringed, for example something as simple as saying "you are useless" is toxic, yet it doesn't infringe on any rights. Not everything that's legal is good.