Sometimes I just don't feel like rocking the boat at home, and I know how she reacts to criticism, so I just don't bring things up.
I can relate this and if your wife is anything like mine, then she knows this fact and capitalizes on it. Although my wife denies she does this, I think she has used this very tactic as a control mechanism for years. But I grew more and more frustrated that I was always the one backing down, biting my tongue and letting her have the rule of the nest. Breaking her out of this pattern has been very hard. My standing up to her has been the source of many of our arguments. There is a lot to this issue.