In a small bowl, whisk together coconut milk and mayonnaise. Add herbs, garlic powder, onion powder, and a pinch of cayenne. Stir to combine, then season with salt and pepper. Refrigerate until ready to use.
Preheat oven to 400°. Place sweet potatoes on a large baking sheet and drizzle with 1 tablespoon oil and season with 1 teaspoon chili powder, salt, and pepper. Toss to coat, then spread potato slices out in an even layer.
Bake until tender and bottoms start to crisp, 35 to 40 minutes.
Pat chickpeas dry with a paper towel and place on a small baking sheet. Bake until dried out and crisp, 30 minutes.
While chickpeas are still warm, place in a medium bowl. Add remaining 2 teaspoons oil and ½ teaspoon chili powder. Toss to combine and season with salt and pepper.
Place dried kale on a cutting board and roughly chop into bite sized pieces. Place in a large bowl. Add a large pinch of salt and massage kale with your fingers, rubbing the salt in for about 1 minutes.
Top kale with sweet potatoes, chickpeas, avocado, and parmesan. Drizzle with coconut ranch to serve.