The author developed the idea that conditions were worse for certain groups of immigrants by citing examples of mistreatment and neglect experienced by these groups in detention centers. They also highlighted statistics that showed these groups were disproportionately represented in detention centers.

Additionally, the author may have pointed out historic and systemic discrimination and prejudice against these groups, leading to their increased vulnerability in the immigration system. The author may have also discussed the lack of access to legal representation and language barriers that make it harder for these groups to navigate the complex immigration process. Overall, the author likely used a combination of real-world examples and data to illustrate the unique challenges faced by certain groups of immigrants.