If you’re not voting you’re indistinguishable from someone who doesn’t care about the outcome.
Only if you aren’t messaging. A write in campaign for “nobody” would be a clear indicator that there are people willing and able to go to the polls, fill out the form, just not for the candidates given. Then, in future, you have hard numbers to point to; “look at this block of voters that wrote in nobody, maybe we should target them”.