The demand that DHs must do 50% of all housework/childcare or you are a pick-me anti-feminist airhead is silly tbh.
Life doesn't work that way for most people nor should it. Instead, both partners should take 50% of the necessary "stuff" that needs doing. EG: childcare, housework, earning money, other caring responsibilities such as elderly parents, bedtimes, morning routine, school runs, cooking, shopping, gardening etc etc etc, as long as everyone is doing 50% of the overall effort, and noone is demanding that gender dictates which role you take on, it's totally find for one person to take on a whole role.
AND sometimes one partner might not have 50% to give sometimes. If that partner is tired, or stressed, or sick then they might only be able to give 20% and in these cases and as a partner, the other person needs to cover them and give 80% and should expect the same back when they only gave 20%. Partners should do this for each other.
50% of everything at all times is all very well for machines, but people are not machines.