Regulation and price caps are much better than unregulated drugs getting pumped into the market.
It was an incredibly dumb idea and anyone who knew anything about regulatory markets and pharmaceutical drug importation pointed out that it was a terrible plan.
You're really trying to cover for Bernie too much. When it comes to a number of topics, he isn't actually that smart and doesn't know how the law or governmental systems work. He's been called out for that going back decades and he just uses his big sound bites about the big banks and big pharma to distract from him not actually having any of the actual specifics on how to enact things, just the big plan to do so somehow.