Margaret Cho has revealed she was offered a part in HBO’s gay hockey romance series Heated Rivalry , but turned it down out of fear that she might get detained by Immigration and Customs Enforcement at the Canadian border, where it was filmed. The San Francisco-born stand-up comedian, 57, who has been a vocal critic of President Donald Trump and his controversial immigration policies , made the surprising revelation on a recent episode of the I Never Liked You podcast. “Last year, I got a pilot script for a show that I really loved, but it shot in Canada,” Cho said. “And I was so scared because I’m so vocal about hating ICE and hating this administration. I was like, I will get detained at the border and I will be put in ICE detention if I go,” she added. “I was struggling over it. I had to talk to all of these people about it. And I was super upset about it, and I said no.…