The Olympians have deemed the demigod hero Percy Jackson to be worthy of godhood, even though he'd denied immortality before:

They took him without his permission, and what mattered: Annabeth’s permission.

Truth be told, she was absolutely fuming. For a young woman so composed and calculated as her, it was rare to see her so worked up and strategised: not for the greater good this time, but for REVENGE.

...

The blonde gritted her teeth and clenched her fists, trying to get to the Empire State Building.

The rest of the Seven were trying to stop her desperately, trying to get in her way and not let her overthrow the Gods for taking Percy.

“Are you sure about this?” Piper pleaded, trying to get her to slow down her pace. “No need to be so cold and calculated. You can maybe.. ask nicely for him back?”