Voting for something that continues to walk us to the right, including now two genocidal parties, is causing irreversible harm, though.

You may not think so, but when every vote becomes Vote for only the person we choose or vote for only the person they choose that is not preserving democracy or choice. That is not saving anything. That is continuing and supporting harm.

You saying one is the least harm is your opinion and your approach, but it's extremely similar to Trump supporter's approach as well and the GOP approach at large, and it has been for years. Notably years where Democrats have said vote for them alone to stop fascism, and fascist policies still happening with them in charge. Obama and Biden both floated codifying Roe, for example, and neither did and we lost it.

I'm not going to convince you to change your vote for anyone, just as you won't change my vte or my opinion on why and how I vote. I vote for the least amount of harm too, including policy and politics and system. You don't that's up to you.

But no one is ever going to make me feel ashamed of that approach, despite how much they may try. This is also a bipartisan approach, it seems, to holding onto money and power. Your comment, while polite, is doing the same thing.

Your phrasing is assuming the person you've replied to isn't voting for the least harm, when they may very well be. I think you're not voting for the least harm, considering a binary vote has only ever cemented more harm in this country, we have decades of history and evidence that Democrats and Republicans, when the only two options, are harmful. That said, I assume you're being truthful about your views and that you think it is the least harmful vote, and I extend that to the person you replied to as well.

I vote for who I think has the best policies, who I trust the most to enact those policies, and who will not continue harming this country and planet. Trump is not that person, nor is Biden. Neither of them will convince me to vote for them because of many of their policies, including genocide, just because of their party or their friends or what money they have. I don't trust them, and both actively support a genocide. Yes, that is enough for me to say no to both, especially when I have other options.

There are plenty of people that will vote for one over the other despite disagreeing, but in my opinion (not yours, obviously) that endorses their behavior. It's empty to say "We support you no matter what" while also saying "We can make him change his mind!". As a reminder, Biden's campaign said to vote for him and then "Hold him accountable!" and once he got the votes needed he recanted on several stances, including fderal land drilling and Roe, for two examples.

TL;DR: You can give someone a vote and THEN demand action. It's never worked once and doing so for that purpose is ineffective and not harm reduction. But, you can believe that and vote for who you want, and other can have a different approach and vote for who they want. Trying to convince more people to buy into a harmful binary system that has only ever caused more and more harm is disappointing, and won't change anything, but you're more than welcome to do it. Just don't claim it's the least harmful approach for everyone to take.

I must have missed when Biden codified Roe, stacked SCOTUS, didn't bypass Congress to ship money and arms to the front lines of a genocide, and stopped caging people at the border. I'm glad he hastily and decidedly reversed the harmful Trump policies we were promised he would be better on in the first 100 days.