Laminating/sealing poisonous books?

Hey guys, I'm just learning more about poisonous books as I begin collecting some older books from thrift stores.

I've poked around the website of the poison book project and they say to handle the books with nitrile gloves and wash your hands afterwards, and store the books in Ziploc bags due to the friability of arsenic in bookcloths.

I was wondering, wouldn't it be a lot simpler, in the case of a casual collection, to just seal in the poison? It's usually just on the book covers - the inside pages are fine - so you would only need to seal the cloth cover. Could you just laminate, paint, or spray on a non-permeable plastic coating? Coat the book instead of your hands and then it can't release the problematic metals anymore, right?

Am I missing something? Obviously you wouldn't do this to some super valuable, museum-worthy old book. but in home collections..?

Thanks!