I take issue with the proposition. Not wanting to partake in building a machine that's going to be used by the government to hunt down "undesirables" isn't "def

I take issue with the proposition. Not wanting to partake in building a machine that's going to be used by the government to hunt down "undesirables" isn't "defending illegal immigration". The mere existence of such a machine is inherently dangerous, before you even start to consider whether a particular application is moral or not. Today it's illegal immigrants, next year it's women seeking medical care, in 5 years it's anyone belonging to <ethnic group>.