It is not a wash. It is unlikely that cost are going to be absorbed (that is to say the corporations will cut their profits). If production is brought back to the US, that means that those workers are not producing something else. And foreigners will have less money to buy from the US.
In the 70's, textile production in the United States moved from New England to the Southeast where the labor costs were lower. New England's standard of living went up overall as the tech sector expanded, often literally in the same buildings. Former factory workers became the service workers the new economy wanted. A few, whose skills were in the textile sector did worse, but most people were better off. Economics does not work differently because an international border. Does anyone think that a tax on imports from the Southeast would have made New England better off?
All taxes have a distorting effect on the economy, reducing productivity. The higher the tax rate, the greater the distortion. As foreign trade is only 12% of the economy, a tariff raises revenue from only 12% of the economy resulting in higher rates than taxes on the entire economy.
As for the question of reciprocal tariffs, I don't understand we should import bad policies from other countries.
Always remember Exports are the price we pay for imports. If we are running a trade deficit, that means we have higher a standard of living. Our standard of living comes from the goods & services we consume.
As for your contention that Trump's promises were just that of a politician without meaning, you certainly have a point. However it is reasonable for voters to want a politician not to do the opposite of what they said.