That is again something the constituency can easily change. It just needs one of the many anti-surveillance voters to be willing to run for office.
How likely is it that an anti-surveillance candidate also happens to satisfy more than 50% of voters on aspects other than surveillance?
Since surveillance is low on the list of priorities of most people, it's a rational choice for them to ignore the candidates' stance on surveillance while choosing their preferred candidate.
As such, the stance of republican leaders on low-interest, non identity-defining aspects like surveillance is mostly unaffected by democracy.