The point is that NC is a State for which the Republican Party must actively contend. Holders of statewide offices in those States as well as States with large Hispanic populations face exculpatory political pressures unlike more secure States.
For example, that both Senators from Wyoming of all places would vote for this is mind boggling. Some of the other RINOS are already in our sites, but Thune? Why? It's those individuals with no excuse upon whom we must focus our efforts to replace them.
Now I see better what you mean, that in NC (and other states) the Repubs have to actively contend, as for example Thom Tillis, who had a tough fight against Kay Hagan, in contrast to safe red states.
I like your tactical focus. I tend to be too much in the Mark Levin "We're doomed" school.