Except sometimes the first order consequences are far greater than second order, and you vote for people who have first order consequences on others.

yes, but that is just a form a political attrition war

What Republican voter is facing consequences for this specific situation?

I do appreciate this notion as I read articles of government workers fired who supported Trump (why a person working for the government would vote Republican is beyond me).

Many of Trumps actions attack those that would either likely never vote Republican or can't vote (illegals, groups on special visas that lost them, foreign students, etc)

I do not know if you will see this.. however, the consequence is faced by the society for electing someone. It is not that the republican voters face something separate.

If you agree that the actions of the current administration are detrimental to the US over long term, those are the consequences.

Take Alabama or Oklahoma for example - their policies have made those states backward. People in those states have poor education outcomes, less wealth and less health, lower social mobility etc. It impacts everyone in those states. Either the opposition needs to mobilize, message better etc. or the voters need to compare and realize what they are missing. If not, they will continue to face the consequences.