How to stop generating textures in Unity after saving from Blender?

I usually save my models directly into Unity from Blender with textures attached to them and what not, but Unity continuously generates a Materials folder which gets in my way. Basically, I want to texture my model in Blender using UV Mapping, and be able to save the model directly into Unity without the textures automatically being applied (to avoid this Materials folder generation). It will be kind of like a “Source Mesh” where I can click on it to open the mesh in blender for editing and what not. I’ll use the export tool to export my model into Unity and create a material instead of Unity doing that job for me. Simply said, how can I stop generating textures in Unity? I essentially want an all-white mesh, as if I made a model in Blender without texturing it and exported it right into Unity. I hope I am making sense, haha.

You need to disable “Import Materials” in the import inspector for the mesh, see Unity - Manual: Model tab

Is there a way so I don’t have to manually do that for each mesh? It’ll get pretty repetitive.

Yes, but it involves writing an AssetPostprocessor script. More specifically a ModelImporter, where you set importMaterials to false.