I have not voted for any Presidential candidate since the 1988 General Election, and I will not be voting for any Presidential candidate in the 2024 General Election.

As I and very many people before me have noted, my vote or non-vote in any present election of significance has no effect on the outcome that election. The margin by which any candidate in such an election wins or loses is always in the thousands of vote, so that an individual vote could be given to a different candidate or simply not cast, without a different winner resulting. But, as I have also noted, a vote cast or withheld in a present election has some effect, albeït usually very small, on the subsequent behavior of those active in the political process, as they have a sense of what they can't, can, or must do to win the next election, based upon the margins of victory and votes altogether withheld.

The least effective thing that a potential voter can do is to vote for a candidate whom he or she dislikes.

[…]

The most effective thing that a potential voter as such can do is to vote for a candidate of whom that voter approves, even if that candidate has no chance of winning, or to submit a ballot from which no candidate receives a vote.

I endorse submitting a ballot in which no Presidential candidate is selected. Where not given a better option to reject all candidates explicitly, a voter should enter something such as [ALL CANDIDATES REJECTED!] as-if a write-in vote, to prevent a poll-worker or election official otherwise taking advantage of the opportunity to check a box for his or her preferred candidate.

In the General Elections after 1988 and through 2020, I considered the Presidential nominees of the Libertarian Party, but rejected each. When, in 2020, Jo Jorgensen joined the pile on top of those who lost their jobs for saying all lives matter, I decided that I would not vote for any subsequent Presidential nominee of that party unless he or she unequivocally denounced Jorgensen and this later nominee's campaign acted to make Jorgensen's victims whole. Of course, I considered the chances of a nominee's taking such responsibility to be negligible.

Then, in August of 2021, Rebecca Lau, Chairman of the Manhattan Libertarian Party from 18 June 2021 to 10 October 2023, wrote My opinion is that the unvaccinated should die. This declaration began a cascade of fifteen-minute problems, with the Manhattan Libertarian Party, then the New York Libertarian Party, then the Libertarian Party National Committee, and finally all the remaining parties affilitated with the LPNC not effecting solutions. I consequently vowed never again to vote for any candidate of these parties for any office.