I agree. BUT how we act in this world, and who or Whom we represent is important.
I believe Christians should stand for Christ, which mean not only voicing opposition to abortion but also reaching out to those who would consider abortion to be an option.
Christians should stand for Christ, which means caring for the sick and the poor.
But our stand should be for Christ and in Him - not politics. When we become entangled with politics we isolate (in the US) a vast number of lost people who we are trying to reach with the gospel by yoking ourselves to the World and to a political entity that is by definition opposed to God.
What I am saying is that I hold the same Christian values and concerns that you hold. Where you may look to a political party (either the GOP, DNC, Green Party, Libertarian Party, or whatever) to lend your voice, I believe the Church is the best entity.