Eighteen-year-old Lorena Carrizo stood outside the Suffolk County House of Correction on Saturday afternoon, crying as a wall separated her from her stepfather, Josue Martinez, who was being detained inside by US Immigration Customs Enforcement. Her mother, Norma Velazquez, of Fitchburg, looked on. She had hoped Martinez would be released in time for Father’s Day — which is also the fourth birthday of their son, Luiz — but that did not happen. “They make the kids suffer more than the parents,” she said, gathered with more than 50 immigration reform activists outside the facility. The group rallied as part of a nationwide effort to urge the Obama administration to halt deportations and stop separating families as Congress considers immigration legislation that could allow some to stay.