The meaning of the hashtag #ratifycrc is explained in this Wikipedia article:
https://en.wikipedia.org/wiki/U.S._ratification_of_the_Convention_on_the_Rights_of_the_Child .
Within the concept of Peace Mainstreaming a legal ban of child corporal punishment is essential to build peaceful societies, which means that the ratification of the Rights of the Child (CRC) also in the USA will be key for global peace.