Some supermarket brands are made by the same factories as the original ones, the difference is mostly marketing.
By the way, this is similar to Amazon analyzing the most profitable products from their partner merchants and creating their own “basic” version to take the market. But people don’t seem as scandalized when supermarket do it.
Voting for people that are closest to want I think is good.
Volunteering in non-profits.
Pushing for progressive ideas at work.
Trying be an example of what I defend and explain to people around me it if they ask me, without pushing them to change, hoping that I can slowly change the culture around me without triggering mental blockers. For example when a colleague asks if I’m vegetarian, I explain that I am rather flexitarian, which means I don’t have forbidden food but I favor food with smaller ecological impact. If they seem not receptive, I’ll listen politely and not try to change their minds. If they seem receptive, I’ll show them the Poore & Nemeck studies. Sometimes just a bit of neutral information is enough to trigger a change.
In short, I don’t want to be someone who just blames the governments or companies, and make no efforts otherwise. I think we need a cultural change at every stage of society.