But there in lies the problem.
DMC1 Dante wouldn't run away from that and let Earth be destroyed. Where's he gonna go? Not only that but that seems really out of Dante's character to run away into space while the Earth is destroyed. No Trish, No Lady, no office, and most importantly, NO. PIZZA.
DMC2 Dante seems powerful in the sense that he could level a city, however those attacks could do way more damage then that, and like I said it's questionable if DMC2 Dante will survive because like I said, there's no definite power scale to determine since Dante hardly showed what his true power was in DMC2.
DMC3 Dante's royalguard is NOT that strong. Despite what you guys may say, Royal guard can't block everything in DMC3. Some demon attacks and even Vergil's attacks, yes, but not ALL of the attacks of other factors.
DMC4 Dante's royalguard maybe stronger then DMC3's, but as seen from mission 12 with those flashing light beams obstetrical, it's not indestructible. It could still be broken with enough force added to it.
DmC Dante's powers only affect demons as seen in his battle with Vergil that he and Kat weren't affected by it., which could indicate that this attack only works on demons and not anything that isn't demon related.