Craftivism

"Though 'craftivism' seems to be associated with left-of-center politics, various agendas and messages have manifested through craft. For example, whereas in 2005 pro-choice activists planned to litter the steps of the Supreme Court with knitted wombs to protest the Court's conservative bent, antiabortion activists crocheted gowns for unborn fetuses.

I came to love knitting as a reaction to working so intensely with technology and became inspired by it as a preinduatrialised skill. It helped me consider the wide gap between handcraft and manufacturing and got me interested in early industrial capitalism, the dawn of sweatshops, and the subsequent labor movement.
[...]
When considering the political potential of craft, it isn't craft alone that is powerful, but the scope of the people that engage in it."

Cat Mazza, in Greer, Betsy (2008), Knitting for Good! A Guide to Creating Personal, Social and Political Change, Stitch by Stitch, Trumpeter, Boston and London, p.107