Nothing wrong with favoring domestic labor
Actually, that’s not quite true, even though it seems intuitively correct. There are a lot of things wrong with favoring domestic labor by default. There are quite a few countries that tried, up to building autarkic economies. Didn’t bring them prosperity or happiness really. What this always does is lower living standards for the majority of the population.
Spending more on the same product isn’t just psychologically uncomfortable, it is also economically detrimental because of a nasty thing called opportunity cost.