it's a hard one. growing up I was subjected to racism throughout primary school due to the colour of my skin. it was only from two particular boys but it hurt nonetheless. got called boondi, n****r, blackie, spear chucker etc... given i was only in grade 3 i really didn't have the tools to cope and learnt to ignore it mostly.

as i got older i learnt to speak up and not let them get to me. it didn't help that my sister was much fairer than me so id get teased about that too. i used to tell them that we were different colours because she was born during the night (no sunshine for her) and i was born during the day(lots of sunshine to give me beautiful colour skin

anyway i guess that doesn't really answer your question but for FB ppl block or delete is the way to go and irl ppl i would pull them up on it only because i think its totally unacceptable especially in this day and age where there is so much cultural diversity