Civilization depends on our expanding ability to produce food efficiently, which has markedly accelerated thanks to science and technology.
Myths about the dire effects of genetically modified foods on health and the environment abound, but they have not held up to scientific scrutiny. And, although many concerns have been expressed about the potential for unexpected consequences, the unexpected effects that have been observed so far have been benign.
If there are more and more environmental refugees, they are going to end up on your doorstep too.