Femen is clear and direct in it's position. Prostitution is nothing else but a domination of one gender through exploitation, force or lie. Patriarchy wants to legalise prostitution as a way to finally win the gender fight and make society accept women as sex-waitresses for the hungry clients that are men.
Public art plays an integral role in any big city. Whether it's Paris, Berlin, Rio or in this case London - art created solely for public consumption and enjoyment should express the aspirations of that city's inhabitants, its visitors and its workers. An important injection of joy into the average person's day.
There is something special about having a song named after you. Unless your name is Kim and you had an on-off relationship with Eminem, of course. But for a song to be about a city, well, you know that there's got to be something special about that place, something worth experiencing for yourself right?