I wouldn't be a Kamala supporter, so it doesn't benefit Trump. Glad we got that resolved.

It’s mathematically impossible for a third party candidate to win

Objectively false. If a third party candidate got the most votes, then they would win, so it is mathematically possible. I understand the video perfectly.

congrats, you have funded a party that can with absolute certainty accomplish nothing, woop de do.

Even if they accomplished nothing, I'd still rather my money go to them than to the government or either major party, all of which I oppose.

Voting always does that

Sorry, you asked "why vote at all if you're not going to vote strategically," so that's the question I was answering.

At the cost of benefitting the party you like the least

I'm not benefitting the party I like the least, I am only benefiting the party I vote for.