I remember when my mom went on strike. She was shrieking. Most of us reacted like, "What's wrong with her?" I think she had just started back to work when I was in 4th grade. She just seemed irrational.
What happened was I ended up doing more, and my bro and dad didn't do anything more. Please don't go this route.
I like this idea, though I can't remember where it comes from. First, calm down (You'll be able to because you have a plan.) Then, get some butcher block paper and hang it on a wall. On the paper, put the name of every person in the house at the top of a column. Then for the next month, every time some errand, task or chore gets completed, write it under the person's name. Also include jobs outside the home. After a point, folks start writing their own completed tasks to get "credit" for it. If possible, also add seasonal or annual jobs to the list.
After the month or so, have a family meeting. Ask people what they notice. Usually, it is not hard to notice who is doing the most. Then, discuss how the jobs will be completed by others since Momma can't do it all and stay sane. Discuss how the jobs will be parceled out, whether it be rotating every week or month, or what task can just be given to another, whatever.
When a member of the family refuses to do the job slated to do, let it go. Then, when that member is looking for something to be done for him or her, don't. No ride to practice. No cookies for the bake sale. Pick the item that will get the most notice. Any laundry I pick up doesn't get returned for a month. You get the picture.
Basically, the visual of the list does the trick. A lot of people are unaware of what it takes to run a household until confronted with the "proof." Tell the family that all members of the family have to make substantial contributions to the running of the household. Discuss how maintenance of items keeps them in running condition and saves money. Discuss how visitors get impressions of one's home, and the standard you want to set.
When the jobs have been given out and your load is more reasonable and manageable, see if the standard you are aiming for is feasible given the time you all have to spend upon the jobs. Maybe it is too much.