LOL, "I'm willing to listen to reasoning, but only if you format it in a way that I'm willing to read."
For real, though, fewer guns means fewer gun crimes. The whole 'then only outlaws will have guns' is really a myth. Statistics have shown over and over again that the vast majority of criminals who purchase guns do so legally. If they can't purchase one locally, they just go a state over where the laws are lax. The whole 'black market' gun stores thing is just a false argument.
The idea that a 'good guy with a gun' will make everyone safer is also pretty well debunked. Just look at John Hurley - the 'good guy with a gun' who was posthumously branded a hero after he was shot by the police.
Guns are inherently unsafe. We're never getting rid of them in military applications, but any reasonable restrictions for private ownership should be a no-brainer.
All the arguments for 'private gun ownership makes us safer' fall apart under any scrutiny. So does the constitutional argument. The only real, provable argument you have is that your personal freedom to own a killing machine is more important to you than public safety.
Nobody is going to make you vote one way or another, but please recognize the following:
The United States is currently a two party system. It sucks. We need to push for more ranked choice voting, as well as direct popular vote.
However, until we're able to achieve something that makes this parties viable, we will continue to have issues with the right wing getting undue influence in our politics.
Vote with your heart, but make sure that you're okay with another Trump presidency of you decide not to vote for Biden.
Keep in mind as you do so that more than one state had enough votes for Jill Stein that if they had gone to Hillary, Trump never would have become president.
We should have viable parties outside of the two not great to horrible parties we have now. But that's simply not the way our government works as it stands now.
Last thing: you've become a single issue voter. This is the lefty equivalent of only caring about abortion and ignoring literally everything else. Politics is complicated, and I personally find single issue voters incredibly shortsighted and lazy.