@Mike2552 What @Mike-And-Jane0 said.
First, it's not "illegal" for AirBnB to send you a 1099-K.
Second, you have to declare your income, so what's the problem?
AirBnB did not "cause" you to "suddenly incur a massive tax liability."
You earned income through AirBnB, and they are sending a statement of the income earned.
I am truly failing to understand why you are so upset, as well as why you would waste your time on the phone trying to fix something that ain't broke.
Many things at AirBnB are "broke", but sending you a statement of income earned isn't one of them, unless you're a tax evader.