They gain a vote from my vote (a vote like any other, and it’s not like one of the leading parties doesn’t someday naturally lose as well), and I gain the license to say I acted like a person in this democracy, not the kind of person who “just follows orders” just because the outcome of those who do is the most likely to succeed. I could always “not vote” but I might as well try. To try and fail is better to never try. And I will always vote based on my own genuine thoughts and nobody else’s, naturally this means not voting for the two candidates who are the embodiment of taking things for granted. Plus it’s not like nobody is tuning in.