This will not be a civil war so much as a revolution of restoration, to restore constitutional behavior to government. While your liberal neighbor might rat you out to the regime, he is not likely to take up arms and seek you out. Unless, that is, you attack his loved ones.
In German people who turned in others were fair game for retribution by the remaining citizens. Should liberals start turning in patriots and the time for armed conflict has come, not a single member of that household would be left alive as an example to the rest this is what happens when you side with the regime. This is common in all wars of a civil nature. regardless of if it is revolutionary or restoration of a sitting gov’t, by definition wars between former citizens or country men are civil wars. civil wars devolve rapidly to total warfare and genocide that is the nature of civil war. Sherman practiced total war in our last domestic conflict burning, pillaging and killing indiscriminately it has happened here and will happen again if the liberals push for civil conflict. Once we have one side using the force govt to put the other on deadly ground, those who use those methods will be sought out and eliminated down to the last person no quarter will be given as men who have lost everything have no morals or compunction left about what must be done to eliminate the enemy who’s caused them to be in a no win situation. make no mistake if the govt and liberals move on assets, children and livelihoods those affected people will have no problem genociding those who have caused that situation I have seen it first hand in the Balkans in the 1990s normal men not hardened soldiers pushing children of there enemies into mass graves once the thin mask of civility comes off humans are murderous killing machines.