Nabokov could have written the same book about pizza cravings. It's not about paedophilia - though that aspect certainly gained attention - it's about obsession.

Read it again; there are zero erotic scenes. The most detailed description of anything remotely sexual is when Lolita stretches her legs across Humbert's lap, both fully clad and entirely innocent

Of course, one may read into a text anything one desires but if you find anything erotic or disturbing in Lolita it's not something Nabokov put in; it's all in the mind of the reader.