Magenta8
Benedict Cumberbatch performed a poem by the Palestinian poet Mahmoud Darwish at 'Together for Palestine' for Aid for Gaza. I think this was fair enough.
During the 1970s The Sex Pistols used to regularly speak up against the war in Vietnam. They also shout out against the British monarchy especially during the run up to the Queen's Silver Jubilee celebrations in 1977.
Recently more and more USA celebrities have commented publicly about the disgusting behaviour of their president, Donald Trump.
These are just random examples; art doesn't exist in a vacuum.
There always has been and always will be a link between the arts and politics whether you like it or not. Cartoons, paintings, plays, poems, books, music, songs and even dance have all been used to comment and convey political opinions.
Cumberbatch did more than this, he lost the respect of many theatre goers!
Nightly Pleas: After curtain calls, Cumberbatch stayed on stage and asked audiences for donations to support Save the Children aiding Syrian refugees.
The "F* the Politicians" Rant:** In October 2015, an infuriated Cumberbatch called the British government's plan to accept 20,000 refugees over five years an "utter disgrace," finishing his speech by shouting "F* the politicians!"Readings and Statistics: He shared humanitarian statistics and recited the poem Home by Somali-British poet Warsan Shire during these appearances.