I like to argue, it used to be a big part of my profession as well. It got me into trouble at work often enough.
Most of my thought goes into "What might I do differently to adjust if X wins this election?". Often the answer is "nothing". Usually the answer is "a little bit".
When Obama was elected, I was confidently told my life was going to change majorly in many terrible ways. There was some impact, I did lose my high deductible insurance option. I was told the same thing when Trump was elected, and then again when Biden was elected. After a lifetime of hearing all this, I realize it is 99% scary partisan nonsense. Bush 2 did impact my life negatively, but that's a one off basically, fortunately.
If Harris is elected, I expect in 2-3 years to be 2-3 years older, and in OK shape, same with Trump. I know some things they SAY they want to do will impact a lot of folks, but saying and doing are often different things. Harris isn't going to tax billionaires any more than I am. The Trump tax cuts will probably expire but get replaced with something pretty close to that, much as Obama adjusted the Bush tax cuts rather slightly in his second term. Various appointments will be quite different of course.
I'd like to think one or the other would actually improve the lot of Americans, but I don't think either will.