We used to say "There's always one." Always one student in the class who may be a ringleader in misbehaviour, who asks awkward questions or is just bloody-mindedly different. I aways found that dealing with them directly, in front of the class, worked better than sending them out or reporting them. You had a fair chance of getting somethng useful out of them, then, even if it was only respect.

Interesting that 'thug' has made a reappearance. When I was young, it generally meant a (white) low-ranking member of a crminal gang - the 'muscle'. The kind of people the real villains sent to beat up Eliot Ness, or The Saint, or Mrs Peel and Mr Steed.

Originally, the 'thuggee' were supposed to be bandits in India whose preferred method of killing was by garrotting their victims with a silk scarf or cord. The East India Company, and later the Raj, spent a lot of time and effort to eradicate them and the more conventionalt bandits known as dacoits.

As to Frankenstein, many modern readings of this story lean into your ideas. But I take the view that, based on Mary Shelleys' novel, we should think of Victors' creation as the 'Creature', not the 'Monster' of subsequent film-lore. As the name implies, the Creature is something created by Victor, and it's crimes are the result of his refusal to take responsibility for it. So that our failure is not in refusing to recognise the humanity of others as much as it is in failing to acknowledge our responsibility toward them. By blaming their background, skin colour or whatever for their behaviours, we abnegate our own reponsibility for and to them as fellow humans.