During my working life in the social enterprise movement I came across many initiatives like this Anti-Fashion Repair School in northern France - https://www.lemonde.fr/en/m-le-mag/article/2026/05/17/clothing-repair-school-in-france-s-former-textile-capital-gives-garments-a-second-life_6753529_117.html - that combine environmental aims with social aims - in this case working for a circular economy with disadvantaged and socially excluded people.
Capitalism is indifferent to the over-exploitation and degradation of both people and planet - and people that care about the environment also generally care about other people - the political left and green are natural allies.