If someone tells me they voted third party, I just tell them that’s great and ask what they’re going to do now. Never get much of an answer.
Because it’s so obvious. They are going donate a reasonable amount from their income to support that party. On the weekends they will canvas locally and participate in community events being sure to show their support for their third party. Then when an election comes up they are going to garner support from their party and have them finance someone local to participate in their local and state elections.
Why would they waste time trying to explain? The problem lies with your understanding, not their actions.
But look, I’ve voted third party a lot, and I could tell you what other activities I do to make the world a better place. If I did, would you stop saying this kind of thing in the future? Do you promise?