Honestly the largest problem I have with anime is the same I have with games and movie; you have to wade through a pile of poorly-produced, poorly acted garbage to find the good stuff. Which is also why I pretty much stopped watching anime and turned to manga, as that draws quality only from the artist(s) and writer, without the need for voice actors who fit the roles and can give a good performance, and without the budget restrictions that lead to things like
massive overuse of stock footage.
As for the whole thing with lolicon/shotacon, part of that
is attributable to cultural differences, in that each culture has different taboos, and frankly, I don't think that judging the entire medium on the basis of the most perverse or poorly produced examples of it is any more justifiable than judging cinema by commenting on 80's porn or Vin Diesel films. (And if you really look at it, there is at least as much a subculture of pedophilia in the West, although it isn't nearly as open. As Mindmaker posted, it is questionable if having it more out in the open encourages or discourages it. Also, 'widespread'? This is the problem with trying to pass judgement on
anything without understanding it. I've watched quite a few series and read more, and I have only seen one non-joking reference to pedophilia, and it turned out to be a subversion [The scene late in the Gantz manga where the middle-aged man claims that he helped Tae because he was a lolicon, but later admits that it was because she resembled his dead daughter]. Perhaps the problem is that I tend to avoid the poorly-produced rubbish...)
If you don't like anime, fine, I'm not about to bug you to try to get you to like it any more than I'd try to get my grandmother to play CoD. However, also, if you refuse to watch anime or read manga, you aren't really capable of evaluating it, for the same reason that I'm not the right person to ask about Country-Western music; it isn't in my realm of interest, I have little or no knowledge of it, and I tend to ignore it when people don't try to push it in my face. Posting a thread about how you don't like something because of reasons a, b, and c, and then going on to say that you've barely been exposed to it is in the vein of complaining about shows you don't watch; if you really don't want to be bugged about it, don't post saying that you don't like/"get" it, and don't want to, as that just invites a circular debate that has zero net gain, and will likely result in, for obvious reasons, people trying to convince you that you're wrong for one reason or another.