Wasn't AltLib to blame for his election.
Nope.
Isn't the attempted removal of women as biological sex an Alt Lib agenda
Nope. Try asking most Americans what that sentence means, and they won't have any idea what you're talking about. So no, they didn't vote on that in 2016.
Trying to cast all politicians as "the elite" and the enemy, yes that's absolutely what the Trump campaign did. That's why they needed a reality TV star rather than a career politician. His schtick was to be "the outsider".
If you were on MN during the US election, you would have seen post after post after post here (yes, even here: quite a bit of pro-Trump campaigning on MN, presumably because of our high rankings) describing Trump as the non-elite who was fighting the elite.
Which is quite a hard sell when you're talking about a hereditary millionaire whose businesses keep failing, but hey, his campaign were a good sales team.
In fact I was reminded just today that Dominic Cummings has used the same sales lines a few times:
Cummings has described that successful campaign, which was based on portraying politicians as a drain on ordinary people, as “a training exercise for an EU referendum”.
www.theguardian.com/politics/2020/jul/10/firm-with-links-to-gove-and-cummings-given-covid-19-contract-without-open-tender
(Of course Cummings, like Trump, has largely dropped the line that politicians are bad, now that they, or their boy, are the politician. But they still selectively resurrect it.)