How to respond to the "But what about the farmers?" argument?

We've all seen this "question" thrown around. It's a smear disguised as an inquiry meant to present climate activists and climate-conscious people as trying to take jobs away from "hard working" farmers. When talking about climate issues with people, this one of the most common responses I get. But here's the thing: I know it's a bullshit question but I don't how to explain why it's a bullshit question. Any help? Thanks in advance.