The Stigma of Being a SAHM

There is a extreme stigma when it comes to being a stay at home mother. Most working mothers and most men seem to think that the SAHM is like a constant vacation.
I hate to be the one to bust the bubble on this but it's NOT!
Yes, it's rewarding to care for your children but it's no picnic. You become their sole source of everything, at all hours of the day and night. That means you are on a 24/7/365 shift of being a nurse, chef, performer, maid, bather, dentist (I could go on until the internet was completely out of space) plus running all household errands, cooking and caring for your husband or significant other and cleaning the entire house usually by yourself all with no one to even say "you're doing a good job". Oh and did I mention the general lack of adult connection during all of this? Oh and heaven forbid that a SAHM need to take a break for anything, including her sanity (or even a restroom break). For thousands of years caring for an entire household in the above manners was multiple peoples jobs and caring for children was a job shared throughout the entire extended family of females or even across the entire village. Hence the term "it takes a village to raise a child".
In addition to being unappreciated for everything you do within the household and for your children, SAHMs then also have to deal with being looked down on by fellow mothers who are working. I've been on both sides of the coin. I was a fulltime working mother for five years and have also been a stay at home mother for about two years now. Both are difficult for different reasons, but society only scolds one of the choices.
I think mothers, all mothers, should support one another regardless of if they work in or out of the home, whether they formula feed or breastfeed, whether they use disposable or cloth diapers, regardless of choice to vaccinate or anything else that society says should separate us.
Before I forget, can I just ask why is it that when a woman is at home caring for the children, cooking meals, cleaning, etc. that it's expected and still "downtime" or a "vacation" but during those handful of hours a man may do the same things (or even just caring for his own children) he and the rest of society seem to think that he has somehow earned a reward? Is the job not the same regardless of who is the one doing it?
This is just some food for thought.