I'm absolutely fascinated by the narrative around her I have to say. I have no particular skin in the game - I've liked her music through the years, some more than others, never been to a tour or bought merch or considered myself a 'swiftie'- but the way she's picked apart so thoroughly, is really interesting and really disingenuous.
I like the new album personally, to me it sounds exactly like a Taylor Swift album and I'm absolutely baffled by the idea that it's any more 'cringe' 'millennial' or in whatever way worse than previous albums. Regardless, people are going to have different preferences so whatever - but the WAY some people have reacted to it is unreal. The level of scrutiny and the way every line is picked apart and held up to 1) reflect exactly what she thinks and feels in her real life consistently and 2) mean things there's simply no evidence for it meaning is just far beyond what any other artist gets subjected to I think.
Because she makes a fairly standard metaphor of a dark night to represent a hard time, with the 'opalite sky' (man made - you make your own happiness) as meaning better times she's racist. Because she mentions wanting kids and wanting them to look like their dad, her fiance, she's actually pushing the trad wife agenda and is a white supremacist, because she uses internet slang in a cringey way in a song that is literally about the fact she's not 'cool' and never has been, she's racist again. There's some merch of hers - a necklace - that has lightning bolts on it (referred to in lyrics to one of the songs - an absolute banger IMO) - apparently they're secret SS Nazi symbols.
To the OP's point - the song 'Actually Romantic' on the latest album sounds like it's about someone who hates you and is always making digs about you, and it's like 'aww, it's sweet how obsessed you are with me'. Maybe it's a bit childish, but it's part of a long tradition of this kind of stuff. When male rappers have feuds and release diss tracks about each other, the internet fucking loves it. Taylor isn't unique in this. It's suggested to be about various people - but who knows? It's not like she's naming anyone. And if you think that's a petty, toxic or whatever thing to do then fair enough, but I hope you feel the same about everything from Carly Simon's 'Youre So Vain' to the ongoing 'beef' between Kendrick Lamar and Drake.