People were all over Seattle SeahawkscornerbackRichard Sherman (A Stanford graduate) on Twitter, calling him a thug and a classless nigger even though white players have done the same thing he did and worse. That's that 'cism.
Criticism about the president Barack Obama. Very taboo in most states within and around the first 100 days of presidency. Kept tightly to inner-social circles of those in the red states or those who prefer to be the ringing voice of contradiction.
Not recommended for those in bars or clubs, or for the morning after inaugurations or election days.
Donald Trump is a victim of erase-cism. The former president has been banned from social media outlets and had previous post removed because his ideas and actions were deemed to be inappropriate. He has been erased.