Lolita has always been one of the most grotesquely misunderstood books ever printed.
As to your wider point: it’s obvious that no one would choose to be a paedophile voluntarily. There’s something wrong in the brain chemistry of adults attracted to children. That by no means lets them off the hook when they act on those urges.
But as ever, it’s one rule for the rich and powerful and another for the rest of us. And it’s the most powerless in society, the abused and the ignored, that end up preyed upon by modern-day Humberts.