From Dumbledore’s words to Harry, I gathered that he was more afraid Harry might become a Dark Lord more directly without a significant Light Lord phase in between. I don’t think he has the concept of a Light Lord present—great wizards are to him either Dark Lords or those who oppose them, not Light Lords who do something positive and unrelated to any Dark machinations.
Also, I don’t trust Dumbledore in particular to make a fair assessment, since he’s the one most liable to be swayed by the single example of Grindelwald.
From Dumbledore’s words to Harry, I gathered that he was more afraid Harry might become a Dark Lord more directly without a significant Light Lord phase in between. I don’t think he has the concept of a Light Lord present—great wizards are to him either Dark Lords or those who oppose them, not Light Lords who do something positive and unrelated to any Dark machinations.
Also, I don’t trust Dumbledore in particular to make a fair assessment, since he’s the one most liable to be swayed by the single example of Grindelwald.