Choosing not to vote in a specific race is not “Wasting your talent”. An undervote is an important way to communicate you were not willing to support any of those choices.
As far as your do it after the “next election”... This election has little at stake while the next one is a presidential election.
“Choosing not to vote in a specific race is not “Wasting your talent”.”
Serious disagreement there. It almost always is burying a talent. Also known as being ‘indecisive’.