[inopinatus]

What you say of agriculture is true, but exposes the strength of landowners as a lobby group, not some innate quality of protectionism. When tariffs, barriers, and subsidies are removed from agriculture, prices fall, and the people eat.

This isn't some abstract argument. If you want to talk about India, notwithstanding that India is so vast and complex a nation that only the unwary say "India this" or "India that" broadly, the country had a decades-long history of protectionism since independence, trying to get by with very low levels of international trade, and this being a crucial factor in the 1991 economic crisis: the government had no foreign currency reserves at time when the balance of trade was catastrophic due to rising global oil prices and the demand for modern goods from abroad.

Liberalization of trade is not without its problems - in particular, increasing wealth inequities, and cultural imperialism by economic means. Nevertheless, the subsequent lowering of barriers corrected the crises and has defined India's catapult to the top levels of international manufacturing and service provision.