Copyright attorney reacts to The Fine Brothers trademark application on the word REACT

I thought I'd try and explain how Copyright and Trademark law apply to The Fine Brothers REACT trademark application and the community's response. USPTO link: http://tsdr.uspto.gov/#caseNumber=86689364&caseType=SERIAL_NO&searchType=statusSearch Update: The Fine Brothers have cancelled their attempt to trademark "React" and have cancelled their existing React-related trademarks. https://medium.com/@FineBrothersEnt/a-message-from-the-fine-brothers-a18ef9b31777#.3o0426f13