Danish Prime Minister Mette Frederiksen, 46, has sparked a debate on people’s behaviour on social media by publishing several hate messages that she said she had received herself. The harsh tone on social media is nothing new, she wrote on Instagram on Sunday, mentioning in particular: “Harassment, sexism, abuse, hate and threats.” Unfortunately, this is part of everyday life for many, which she said worries her deeply. Frederiksen spoke of young people who take part in casting shows and receive racist and hateful messages, of journalists, researchers and civil servants who are threatened, of …