The game theory strategy in the electoral college is to register and vote as the non-dominant party in any election. If enough people follow this strategy, the locality becomes a swing state and the party platform and candidates will reflect their interests.
>Also why give the government any ammunition to legitimize their existence in the first place.
Until the government collapses, they still control the monopoly on violence. Unless you're a radical pacifist and willing to be the sacrificial lamb, there is a pretty clear need to participate to the extent that the wolf of government doesn't eat you. The punishment which the wise suffer who refuse to take part in the government is to live under the government of worse people.