Earlier quoted context omitted.
> what does it mean to not “allow” a law? Voting against any politicians who contribute to its passing, even if they're from your preferred political party.
Little evidence for this strategy's efficacy. Single-issue voting doesn't carry a lot of weight and in many cases other candidates would be equally supportive of the policy. As I often point out, surveillance is bad but so is child abuse and complaining about surveillance without acknowledging that is a good way to get ignored.
Single-issue voting in the primaries can be extremely effective. Case in point is how the NRA electorate dominates Republican primaries, even though the majority of Republicans actually support various gun control proposals (e.g. AWB).