Go the Exo-Squad route. Colonize Mars and genetically engineer a race of superhumans to survive the harsh conditions. Then become terrified of your Mars-Engineered Children, reclassify them as a hostile alien species, and spend the next five years doing interstellar pogroms in cool mechs.
They’re trying to hit a call-quota. The people on the other end of the line don’t actually care if you vote or who you vote for. They just want to make their 1000th call and go home. You’ll notice you still keep getting called so its not like anyone is registering what you’re saying.
When I dabbled in electoralism I used to see this on the other end. There would just be a line of phone numbers getting dialed. 90% of them wouldn’t pick up. Anyone who answered the phone promoted you with a “R / D / Undecided / Other” option menu. If someone on the other end of the line is saying “I won’t vote for genocide!” what do I select? Undecided/Other. But that doesn’t take you off the phone list, it just spits you into the “Try again later” queue.
The best way to get these calls to stop is to identify who is making them and say you’re staunchly supporting the other one. That still doesn’t work too well, because you’re getting called independently from Presidential, Senatorial, and House phone bankers who don’t bother to coordinate because that would mean functioning as a party rather than a random assortment of self-centered egomaniacs. But it does at least get the network you said “I’m voting for the other guy” on to flag you as “Opposition, do not call again”.