JS:Along with being the President of Irrational Games, Ken Levine wears the hat of creative director and lead writer on the developer's projects. Speaking with Joystiq, Levine made it clear that he doesn't subscribe to the notion that video games should be restricted from tackling any sensitive issues.
Thing is, if you don't like it don't involve yourself with it. If you don't want your kids to be exposed to it, don't let them. Be responsible, these age ratings on everything exist for a reason.
On another note, I don't think videogames have censored much at all in dealing with certain topics. Rather developers just don't want to take the risks involved. I really admire devs like IG for not being afraid to gaming beyond its usual comfort zone.
I find it very hard to be shocked, offended or insulted by any game, movie or book etc. I know there are many like me who appreciate peoples creations for what they are. The problem is that every single person has a line and it is a very thin one at that. Racism, extreme violence, sex etc etc are such touchy subjects in games and I really don't understand why they are. Explore everything. I am even okay at the fact Rapelay exists... its not hurting anyone... I don't care there are mindless racist games out there either... These games don't suit my taste so I avoid them completely.
Its that simple.