As someone who had to create transgenic E.coli in a lab, I admire the effort. It’s hard to get it right, especially when trying to make bacteria produce stuff for you. However, it feels like a huge step backward. Imagine you couldn’t afford to buy a piece of bread. Instead, you need to grow your own grains and build a windmill first. Sounds ridiculous in 2021.
I agree with the sentiment but decentralizing and downscaling production is a win for resiliency. This is a good example but others include recycling and power generation have clearer benefits
I think you are severely underestimating what it takes to produce a protein drug like insulin. Getting the bug to make it is just the first step. Then next step is purifying it. Which takes SO much water, and salts, and specialized equipment (resins, columns, high-pressure apparatus). A decentralized insulin production scheme is going to be VERY ecologically destructive.