Really tough topic to tackle. My two cents is, like some others, I'm not familiar with the titles that are being censored so I'm personally not being effected too much. While those games don't interest me I don't think they should be banned or censored. However, if the platform doesn't want those games on their system that is their right to deny them or ask for them to be altered to be sold on their platform.
If this pisses you off, let Sony know. Write them on twitter and anywhere else you can, don't buy their products. Buy products that do support your interest or support not censoring games. Also understand that not everyone is going to be as passionate about this as you may be. Others, I'd bet a large portion, won't see this as an issue, but I do think it's important to know that this is happening.