We need industry to make fertilizers.
Let's clarify that shall we? We REQUIRE the fossil fuel industry to make fertilizers. And all the other things you listed, like solar. At the end of last year, over 10% of GLOBAL electrical production was wind or solar. Go ahead and take a stab at what happened to GLOBAL emissions last year. Now go ahead and square that circle. All your hand waving has resulted in more emissions. So again, how would building industry solve anything please explain.
Try reading it again.
I suggest following your own advice.
The most exciting phrase to hear in science, the one that heralds new discoveries, is not "Eureka!" (I found it!) but "That's funny ..." -- Isaac Asimov