Not entirely sure if I fully understand your question. To clarify, these CSS hacks often use checkbox inputs for isomorphic state management and that is simply

Not entirely sure if I fully understand your question. To clarify, these CSS hacks often use checkbox inputs for isomorphic state management and that is simply incompatible with the semantics those elements are designed and expected to represent. ECMAScript is a browser standard and was specifically invented for adding interactivity like toggling a hamburger menu. Yes it's also used for less savoury business but that's not the end-user's fault and shouldn't be made into their problem.