It's not an unbelievable thing, but it's just so... surreal. You'd imagine that she'd just not vote to begin with, or maybe she'd vote for a third party, since voting for Trump has a range of potential imports, the most typical of which would seem to contradict her (admittedly, presumed) values. It probably should be easier for me to understand than it is given that even religious and socially conservative Christians routinely vote for Democrats who only tolerate a neutered Christianity that'll allow for the very things they decry, but that behavior is probably the result of having to be defensive of their faith in a society that constantly derided them for taking it seriously.
As crappy as it may seem, my first reaction to this was "manic episode" (even if the people that are voting for Biden despite the bald attempts of the MSM to propagandize away recent revelations aren't much better, even if some are hypocrites that'll gleefully vote for people that advocate against their values and not even try to counterbalance that with their own advocacy if the truly believe themselves to be voting for "the lesser evil", and even if they all are unwilling to assert their own values in the political sphere to be carried by anyone). I also considered the possibility she's trying to cultivate a following using the "converted dangerhair" narrative, but that's even less tenable since a) this came from Tik-Tok, and b) even disregarding (a), she'd very obviously be courting an audience she'd find distasteful in other ways, even if she only felt that way initially.
That would be a lateral move, which... actually makes it plausible, especially since a community for those exists.