In June 2016, Rowling opposed Brexit and campaigned for the United Kingdom to stay in the European Union, in the run up to the referendum to leave the European Union, stating on her website that, "I'm the mongrel product of this European continent and I'm an internationalist. I was raised by a Francophile mother whose family was proud of their part-French heritage ... My values are not contained or proscribed by borders. The absence of a visa when I cross the channel has symbolic value to me. I might not be in my house, but I'm still in my hometown." Rowling expressed concern that "racists and bigots" were directing parts of the Leave campaign. In a blog post, she added: "How can a retreat into selfish and insecure individualism be the right response when Europe faces genuine threats, when the bonds that tie us are so powerful, when we have come so far together? How can we hope to conquer the enormous challenges of terrorism and climate change without cooperation and collaboration?"