Risk is relative. What’s your standard for being secure? The rifle homicide rate in the US is 0.18/100k people [0], which includes hunting and "traditional" rifles in addition to assault-style weapons. Is your standard for security measured by this metric? If so, you should feel quite good. Or is it that you’re allowing the emotion aroused by splashy headlines to color your judgement?
To answer you directly: I wouldn't make my home more dangerous if I can avoid it, barring some counterbalancing upside. The counterargument that, "it's still way better than living in a favela!" doesn't work for me.
Economically, mass low-skill migration has significant downsides for low-skill American workers. The "upside" is an increase in the total economic pie for U.S. citizens, but only because capitalists can exploit migrant workers even harder, and non-citizen workers' shares of the pie don't count.
[0] https://www.pewresearch.org/fact-tank/2019/08/16/what-the-da...
[1] https://www.politico.com/magazine/story/2016/09/trump-clinto...