[Actually, playin devil's advocate and all, calling the films "child(hood?) molestations" is a fun exaggeration of the common silly "prequels ruined my childhood" complaint - if it's meant seriously, it sucks, but come on... bad adaptations are constantly referred to as "abominations" and "raping the originals" and what not, and mostly it's all tongue-in-cheek.]
Yea, but come on - you're seriously acting as if the prequels were the only bad films ever released to cinema. Just how many movies in cinematic history have TRULY bad effects, horrific acting and asinine plots? How comes you can view them all on DVDs, or on Youtube / the internet?
The CGI isn't even that horrible, SOME of the environments (Kamino and Jedi temple, mostly) and creatures look "kinda fake", but still safely on the (stylized?) photorealism side.
Neeson, McGregor and Lee are all fairly decent, and nowhere as bad as Portman, or the Anakins in I and II.
And you know why the films weren't prevent from being released by some space cinema police? FUCKING MONEY. All of them were very successful financially, so one after the other was made and then sold on DVD.
The audiences are at fault - but not really, because no viewer has any obligation to specifically boycott movies.