If a variety of curly kale resistant to club root is developed by GM, then I'd buy seeds. I buy brassica seeds, only to lose most of my plants to club root. Resistant varieties are starting to appear for some brassicas, but not all.

When I grow my own veg, I'm cutting food miles. This year I'm going to try resistant cabbage for the first time as the seed catalogue had a variety available.

GM may not be evil in all cases.