I'd bet the average person contributes 10 times more plastic waste every single day than a single pair of airpods (by weight).
Yes it's still wasteful, but one of the absolute least impactful places to start optimizing your life given how useful the things can be over their 2-3 year lifespan.
I do not think the plastic is what is concerning. It is the energy put into manufacturing and shipping the item. This is a high end electronic device, with a bluetooth modem and a lithium ion battery. Plastic waste is one of the least significant problems here.
Yes it's still wasteful, but one of the absolute least impactful places to start optimizing your life given how useful the things can be over their 2-3 year lifespan.