Being on the end of racial insults throughout life, from both african american, mexican americans, caucasian americans, asians against asians, brazilian blacks, italians (omg, the italians, lol)... Anyway, I'm neither numb or angry at situations like this anymore. I started to realize that whether it's racism out of pure ignorance or out of anger (which is also ignorance caused out of anger), all of society is to blame. People just aren't racist because they are born that way. It's from upbringing, society, friends, parents, school, tv, news, media, movies, etc. It's taught from everyone.
I don't know one person that either isn't racist or perceived as a racist due to different cultural differences. I have Spanish friends that says things that us Americans would find offensive, but being extremely open minded ourselves, we know they don't mean it in such a way.
Not to protect Busquets, but I feel he was provoked by Marcelo's dirty games and wanted to jab him one more time. Racism isn't the main issue here, overall, it's the dirty world of 'you hurt me, i'll hurt you'. Whether it's in a form of diving (di maria, marcelo, pedro, busquests) or career ending tackles (all of real madrid
jk...
Busquets is still young and have many years to right his wrongs. In the end, it's just words. Unlike Pepe's career ending tackles.