Probably neither. This is not a "new" problem. Christians always tend to stay home and it's hurt other candidates before Bush. Some just don't feel a need to participate in "this world." Leaders such as Dobson and Colson are trying to reverse that trend.
I agree. They fail to recognize that God invented government.
There is one way to reach God - through His Son. There is one way to receive forgiveness for sins - repent and believe on His Son. Once that is taken care of, Christians can look at God's Creation through radically different eyes, and can make a difference in their world. This is done by reminding our world that everyone is accountable to God, and His holiness, love, and justice are just as relevant today as always. From that we can speak to our culture that has lost its way. This is what Christians are supposed to do, and why they should vote and be actively involved in our culture and politics.
This is probably more of an answer than you bargained for, but I hope it helps. God bless.
Some of the problem stems from that fundamentalist Christians make religion a way of life instead of a part of their life. They get so wrapped up in their religion nothing much matters after that.