With millions of American families facing an uncertain start to the school year, the struggle for child care, education and economic stability is fueling a political uprising, built on the anger of women who find themselves constantly — and indefinitely — expected to be teacher, caregiver, employee and parent…

Now, the rage moms are railing in Facebook groups about school shutdowns and in teacher union meetings about reopening without proper protection from the virus. They’re also packing virtual town halls with frustrations about schools, child care and the lack of leadership.

“There’s nobody giving us solutions,” said Kim Lopez, a mother of three in Glendale, Ariz., and part-time financial assistant, who is still unsure what her children’s schooling will look like this year. Ms. Lopez said she never considered herself political until this summer, when she brought her children to a small Black Lives Matter protest in the Phoenix suburbs. “It’s as if they don’t care what happens to families.”