I don’t know how inebriated a person has to be before they are “drunk” but it seems to me that few if anyone here has any issue with responsible adults sitting around a purim suedah and getting inebriated to the point that they mix-up the details of the Purim story.
People have an issue with: (i) people hurting themselves and each other in their drunkeness; (ii) people acting drunk in public.
I don’t see why we can’t have a fulfillment of the mitzvah of simcha on Purim and still make efforts to stop violence and public drunkeness.
Maybe we should have community wide takanos limiting purim drinking to the seudah?