there's too many times where a harris mistake that cost her the election is something trump is doing but cranked up to 11. i can think of a few reasons why there's a double standard and you could have that debate, but does anyone not think the double standard exists?
I get where you're coming from, but I think you're making a mistake in your assumptions - specifically, you're assuming that supporters hold the same views for both candidates.
Consider... some people like hot dogs and some people like tuna fish sandwiches. I know, weird starting point, but bear with me.
If a hot dog company starts making bigger hot dogs, that's not a turn off to people who like hot dogs. And it has not particular impact on people who like tuna sandwiches - they already dislike hot dogs, why do they care if the hot dogs they're already not eating get bigger?
On the other hand, if tuna fish companies start making hot dog flavored tuna it's probably not going to be attractive to tuna fans. Even if they make hot dog shaped tuna fish, it could still turn off tuna supporters. Not all of them, because it's still tuna, and some people really love tuna fish.
Now here's the kicker: Some people like hot dogs sometimes and tuna sandwiches other times. If tuna fish companies start making hot dog flavored tuna too much, it's going to have an effect on those sometimes people. If it gets to a point where the shelves are full of hot dog flavored cans of tuna, and it's difficult to find regular old tuna flavored tuna... those sometimes people are likely to just stop buying tuna altogether. If they're in the mood for hot dogs, they're just going to buy hot dogs.
All that is to say that I don't think it's actually a double standard. It can only be a double standard if the standard itself is consistent. But it's not - Democrats and Republicans aren't apples to apples. They're not even apples to grapefruit most of the time, and over the past few years they're much more like apples and hyenas.