如果Greenland人民同意我希望美国能买下来，但是川普给的理由太弱zhi，每次说话都像老农民给美国丢脸

“the fact that they had a boat land there 500 years ago doesn’t mean that they own the land. [I’m] sure we had lots of boats go there also.”

他忘了欧洲人来美洲也是几条船？500年前美国在哪？who are we?