I am sure Carlos will repond. Here are my 2 cents....
Is the bias against fathers because of Mexico being a more traditional country (i.e. cultural differences)? I'm asking because I'm inclined to think that factors in with Brazil and Japan as well.
Everytime I say this, I get shouted down...but I will say it again. Bias against fathers is pretty much universal. A father is guilty until he can prove his innocence. I faced it during my own dissolution process. Talk to any man who went through divorce proceedings in US and they will say the same thing. This bias is not limited to Courts. Public, media and Law enforcement have the same bias. Though I am not certain it is still the case, I think Middle East is the one exception where father is considered to be the guardian of children and hence favoured in child custody matters.
Carlos:
If so, then why the bias against LBP mothers or is there an anti-American component to it too (like there probably is with the other two countries)?
This can't be ruled out. A lot of third world countries like to thumb their noses at US. Given how little the US Govt (DoS and OCI) cares about these children, the other countries know they can get away with throwing US Court orders in garbage and apply their own law and interprete it favour the abductor. Just look at Japan...they need US to defend their nation, they need US to sell their cars and electronics and an American father is in jail awaiting trial.
Also, I was wondering if any LBPs that you know of have tried bringing the OCI's lack of support to the media's attention or would most LBPs be concerned about antagonizing them? And in asking, I realize there are hurdles to generating media attention for these issues.
I don't think any LBP cares about antagonizing the OCI. It is not like they can help you when you play nice with them. They are incompetent, period. You must have noticed by now that simply getting the story of an abduction has been very difficult for most of the LBPs. When they run a story, they hardly have enough time to get into the issue of OCI's effectiveness.