It's nonsense.
They can say she's not been effective, or her policies are weak, but the rest is absolute, usually sexist (and/or racist) bollocks.
You stated that Harris is an extremely able and intelligent woman.
I don't know if she really is or isn't. I can only go by what I have seen and heard of her and that had been wholly underwhelming. Hillary was far more capable based on her experience and the qxk record.
There's no doubt Trump talks out of his ass regularly. But leaving aside the idiocy of Jan 6th, what in his actions during his last presidency lived up to the outrageous comments he made before then?
There are plenty of moderates who believed he did a decent job and there is actually something to compare him against.
What are we to judge Harris on? It's not clear to me how much influence she had on the Biden term (which many could rightly argue was pretty successful). It's not clear what she would so the same or differently - she has had plenty of chambers to explain
Note: statements about Trump not his supporters. Dismissing the latter as all idiots and racistS gets the left nowhere. I repeat my point – to call Harris a 'terrible candidate' when the comparison is Trump is absurd. You or anyone else might wish for a better alternative, but it's the choice we or perhaps more accurately you have got.
It is of course understandable how you feel.
But leaving that aside, I don't seem to find it too hard to at least empathise why people may want to vote for Trump (beyond them all being seen as racists and idiots) . The attitude of being appalled at and ridiculing Trump supporters is also in part why there is such a highly charged and polarised election.
There are plenty of reasons why Kamala can be viewed as a terrible candidate (most Dem voters would agree to this themselves six months ago).
Let's say for the sake of argument but what you say about Harris is true - she laughs a lot and lack substance. Then compare what we know about Trump, that he lies continually, is racist and misogynist, admires dictators from Hitler to Putin, encouraged his supporters to overthrow the constitution and is threatening to use the army against his opponents.
Apparently you (and Sonoma Blue) don't seem to see this as a problem compared to 'laughing Kamala'. But the no substance stuff is nonsense. Whatever criticisms one might have of the limitations her (extensive) policy programme, she is an extremely intelligent and able woman who demolished Trump in the debate without breaking sweat.
Biden seems to have had a lot more substance but he is past it now
Genuinely interested in what sort of US Trump voters want to see.