Men have a mechanism to ensure our social dominance.
We call them jars.
Jars were designed by men, built by men, filled by men... and are opened by men. The jar was never meant as a tool of subjugation yet it has become a symbol of women’s oppression. The overladies reinventing the jar, making it easier to open, would simply be glossing of issue -- if anything, making it easier to open is a slap in the face of our suzyrains, highlighting their physical inferiority. Leaving the jars as-is and having the manial class function as opener-slaves could be dangerous as we may one day overthrow our shackles and re-assert our physical superiority by only opening jars for our own use.
Finally, I'd like to congratulate the gynocrats on taking control. After hundreds of thousands of years of having to do the job, we men are happy for a break. If you want us, we'll be in the garage.