Personally, I don't think the court is as gender-biased as many would have you believe. Unfortunately, the court turns everyone into adversaries where someone always wins and someone always loses, but it's more common to believe the court is biased than it is to believe that a party lost for a valid reason. When the mother loses, it's because "the father lied his way through court" and when the father loses, it's because "the court is gender biased". You will never in a million years hear a parent on the losing team - mother or father - simply say, "Yes, the court had a valid reason for its judgment".
For men, I can also make sense of their perception, though. After all, it's women, rather than men, who are more likely to claim they fear for a child's safety which results in supervised visits, and this act, in my mind, comes down to biology. Women are the emotional gender, men are the logical gender. As such, women tend to want revenge, whereas men tend to want what's fair.
But these days, the court is privy to the emotional games every day of the week, and I would even argue to the contrary of the court's alleged gender bias toward women. To me, it seems the court is becoming more intolerant of mothers who bank on the long history of woman-is-victim social discourse to advance their case. The court is placing greater importance on dads these days and is growing increasingly sceptical of allegations of domestic abuse, as well as recognising that women are quite often unable to put their emotions aside so their kids can have both parents in their lives. I would argue residency is now ordered in favour of fathers as often as it is in favour of mothers.
But unfortunately, the bigger issue is that it's the nature of the beast in the adversarial system that someone will come away with the short end of the straw, and it's the children who are most affected by the use of an adversarial system to govern relationships that should be co-operative rather than competitive. It's undoubtedly in a child's best interests for their parents to get along, but parents are still forced to turn to a system that has no choice but to ensure they don't get along at all. It is expected to act in the child's best interests, but is fundamentally unable to do so because it must turn parents against each other to determine an outcome. This is why we need reform that is preventative of parental disputes, rather than curative.