One honest argument I heard, from the kindly friend, is that he thinks the economy is going to be better with Trump. He is a Salvadoran American small businessman, and says he has never felt safe at home until recently, under the Trumpy President Duterte. I suspect El Salvador did need a Duterte-type for a short time (unfortunately, he’s sure to overstay that time). And the U.S. has no such need.
Miriam Adelson is an Israeli born dual citizen that AFAIK is a single issue pro-Israel voter. She sounds sincere to me.
I believe reversing Roe v. Wade increased the number of abortions. But if you are a single issue pro-life voter, who has been dreaming of overturning Roe for many years, it will be sincerely impossible to accept that this backfired.
What about claims that Harris’s policies are less well known? This kind of claim has some truth behind it whenever someone who has been President before is running against someone who has not. I rate it as unfair but likely sincere.
I can see an honest person voting for Trump because of the assassination attempts.
Many Trump voters honestly like his isolationism. I think they misunderstand how extraordinary is the achievement of going for 79 years in a row without a nuclear weapon being used in war, and the part NATO plays. But theirs can still be a honest argument.
By personality, I favor tend to favor experts AKA the establishment. But sometimes the establishment is mistaken (U.S. invasion of Iraq). Many Trump voters honestly think things are so bad that Trumpian chaos is preferable.