> why people in some cities are defending violent illegal immigrants

Most are not violent.[1] Many of them are “here for decades and that had properly integrated into our society” just like you said, or are attempting to integrate and be here legally, so people are defending them. If the government can trample one group over the worst crimes of a few of its members, it can trample any group for any reason, so we must stand together to protect our freedom.

[1] https://www.cato.org/blog/5-ice-detainees-have-violent-convi...