Republicans are the ones that put her in the spotlight. Even if they are out of power, they will still need someone to demonize.
She’s not going to be redistricted into a district a Republican can plausibly win. Every New York City Congressional District is currently held by a Democrat, and except for Staten Island by overwhelming margins. Even all the inner suburbs are held by Democrats. The only way that AOC loses her seat is to another Democrat in a primary or if she decides for some reason to move to the Hamptons.