Most immigrants, including refugees fleeing violence, are demonized these days by President Donald Trump and his administration.
Trump famously launched his campaign by labeling immigrants from Mexico as rapists. There is the Muslim ban. Trump has claimed, without providing evidence, that many of the Central Americans seeking asylum at our border are criminals.
In full: https://www.kpbs.org/news/2018/dec/26/journalists-book-explains-severe-barriers-cambodia/