If you do this to the entire economy, yes sure, fair. If you decide that you want Americans to eat American garlic and you give garlic farmers a tax break or gr

If you do this to the entire economy, yes sure, fair. If you decide that you want Americans to eat American garlic and you give garlic farmers a tax break or grants to buy seed and fertilizer I wouldn't call that central planning. More "strategic investment". Replace garlic with whatever industry it is that the gov wants to strategically invest in: semiconductors, automobiles, aerospace, weapons, renewable energy.