I dunno. I mean, don’t get me wrong I am not trying to make you like America Chavez. I am not a fan of her either.
It’s just that she was a huge improvement from the comics were she unironically had “Holy menstruation” as a catchphrase and seemed to be written to be the most annoying and wokest character ever. She just exists to tick all the woke boxes and virtue signal.
MCU’s America Chavez is not the greatest character or anything, she is mostly forgettable , as you said, but she was still much more likeable as a runaway girl. And she was at least believable as a teenager.
Even her bizarre backstory is more palatable in the MCU, because you can just shrug it off as the multiverse being weird. In the comics it’s just nonsensical how she is somehow a proud Latino but also from another dimension of lesbians?