Far Right Demonstrators in Korea Waving American Flags?

The right wing opposition party timed their protest to coincide with a far right wing demonstration demanding that former president Park Keun-hye be released from prison. The opposition party leaders protested against President Moon stating that he is Kim Jong-un's mouthpiece, and other nonsense.

Nothing new, but I noticed a new twist. The demonstrators are waving American flags! In the video, among the Korean flags, you will see American flags. There were more American flags in subsequent protests, and I think it is a deliberate attempt to make them appear more legitimate, and win over Americans. Let's see if it is a growing trend...

Wonder how Americans would feel about this?