She won by almost 14% in a DEM wave year. This is a Trump +14 district. She will not lose.
That doesn't change the fact that she initially tried to sell herself as a Moderate Hero and now suddenly became a bona fide MAGA troll.
Dropping the Moderate Hero act isn't going to stop Trumpists (a majority of her district's electorate based on 2016 vote share) from electing her.
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It is a bit funny though that Stefanik's whole shtick was about making a concerted effort to bring women/diversity into the GOP caucus and overnight she's become a hero to the MAGA crowd.
This place is historically Democratic and had a ton of Obama Trump voters. I wouldn't put odds on her losing, but it is definitely within the realm of reasonable possibility