Final answer:
The visibility of Otaku culture in American mainstream society has increased through the popularity of Japanese anime and manga, the rise of South Korean K-pop bands like BTS, and the global success of Korean dramas such as the most-watched Netflix show, Squid Game.
Step-by-step explanation:
Otaku culture has become more visible to the American mainstream through several avenues, but three stand out as particularly influential.
First, Japanese anime and manga have seen increasing popularity and distribution, becoming global phenomena that are widely enjoyed in the United States.
Second, the emergence of South Korean K-pop bands like BTS, iKon, and Got7 has not only captured large audiences in the U.S but has also influenced the global music scene with their distinct style.
Lastly, the massive success of the Korean-made serial thriller Squid Game as the most-watched Netflix show highlights how Korean television dramas have gripped American audiences.
These avenues have facilitated the blending of American cultural styles with unique features from Korean and Japanese cultures, showcasing the complexities of cultural sharing in globalization.