>>45635410Let me explain it this way.
If Dragonite and Butterfree were to switch types like this (movepools stay the same), would Dragonite still be the better one?
Yes. Dragonite is better than Butterfree, but that's not because of its typing, but because of basically everything else.
I'm not sure if I'd agree with OP saying Bug is better than Dragon offensively, but I will say that Dragon's strength is overrated.