Otherwise known as "plausible deniability" when working with -- or not attempting to prevent -- foreign agents influencing American elections.
There are also "multiple reasons" to gerrymander districts and "purge" black and brown voters from the voting rolls -- but the main one is so that the Republican party can suppress "minority" votes in order to win those same elections.
You're quick to jump on "open borders" on the basis of a biased assumption, but exceedingly slow to admit the obvious with regards to your party's true nature.