Using "literally" figuratively or, more precisely, as a hyperbolic intensifier [0], is a tradition employed by notable English writers who lived and died long before you were born.

[0] https://en.wikipedia.org/wiki/Literally

And someone would have replied "I could care less" (incorrectly implying they do care, even if it's a little bit) :(

I don't mind that one because it does not risk destroying the usefulness of a previously useful unambiguous word.