Climbing the ladder has inertia, anyone taking a sabbatical will be hugely adversely affected.
We should however destigmatise men taking parental leave in order to readjust this.
I will point out, however, that our society still prefers that men pay more than their share and many women have reported being uncomfortable out earning their partner. Obviously these conditions cannot coexist.
Artificial protection and gatekeeping by ordinance are there to protect those who got there first. Then we can blame others: women or immigrants etc, for wage depression. Unions do this less but still favor those who organized first.
If capital gets to hire for less, say that. Maybe the opportunity was an increase in certain pop segments, but they dont make wages go down. The people who pay wages do.