Why do some people protest against Christopher Columbus being seen as a hero?

Columbus Day is arguably the most divisive of all federal holidays. There’s no mail service. Some big banks are closed. And while plenty of stores offer “Columbus Day Savings,” the specials they’re promoting tend to indicate the explorer wasn’t the keenest shopper on the planet.

While he’s credited for leading the charge of European immigration to North America, history has shown that Christopher Columbus was less a heroic historical figure and more of an arch-villain, bringing disease, wars and more to what would eventually become the U.S. and brutalizing Native Americans in the process.

Explanation:

Because the native Americans where living in peace until he came and said he "discovered" a new land when the whole time the native Americans where there FIRST!

where is your diagram?

trade regulation is a field of law, often bracketed with antitrust (as in the phrase “antitrust and trade regulation law”), including government regulation of unfair methods of competition and unfair or deceptive business acts or practices. antitrust law is often considered a subset of trade regulation law. franchise and distribution law, consumer protection law, and advertising law are sometimes considered parts of trade regulation law.

in general the theory of economics says that the more open to trade a country is the better   the result for the same country and the whole economies.

in real life countries impose taxes, quotas, etc which is not so good for the economies.

this kind of commercial war between the usa and china is slowing down the growth of the whole world so we can say that it is a draw back of trade regulations. and the free trade agreements are benefits of trade regulations.