This notion of "bury the throwaway culture one repair at a time" treats symptoms, not roots: there is nothing persuading manufacturers to make stuff which will last. Should the movement take hold, manufacturers may very well respond by making stuff even cheaper, as the effort to make things so inexpensive it utterly undermines the movement is easier than making things robust and durable. I appreciate the movement's intentions, but think they should seek means of persuading production of durable goods, not eeking another 20% of life out of something having a very short lifespan to start with.
Occurs to me that the only durable products made today are firearms. Ironic.