My response to people who are ignorant enough to think that language doesn’t change, and that eventually “ableism” “classism” and other similar words won’t eventually be part of a recognized lexicon.
As a point of order, though: “elbow” already existed as a noun. What Shakespeare did was use it as a verb, as in “to elbow someone aside”.
Which is still important, because this is part of how language grows: we recognize the usefulness of an existing word in serving a different function. This is how “fun” became an adjective, after “funny” (the adjective form of “fun”) grew to mean something else.
I know this because the last time this came around, I wondered what the context for Elizabethan England was where people would recognize “elbow” as meaning “the bendy bit of the arm” and decided to look it up.