((What I’m about to describe happens not all the time, but enough to notice it…))
Christians are not only against things, we are also for things. (Indeed, for everything you are for, you are therefore against anything that hinders what you are for!) Nonetheless, because of the Christian conviction that the Creator is for wise, loving, creative order in the cration, for two-millenia, Christians have been against all manner of things they see in the world, which they see as falling short of the order that God designs and desires to be brought to bear upon the creation: violence, slavery, abortion, unjust pay for workers, various kinds of sexual behaviour (sex with those who are: too related [incest], too young [paedophilia], too similar in bodily sex [homosexuality], not willing [rape], etc.), cruelty to animals, pollution, anarchy (and it’s equal opposite evil, oppressive dictatorships), greed, sloth, etc., etc.
In the old back-and-forth between the Church and State (‘the World’), there have been two main areas of BOTH disagreement AND agreement:
a) ethics: what is right and wrong (i.e. what we should be for, and therefore also against)
b) politics: how to wisely govern and order society (including how to promote/legislate in ways that promote this)
Sometimes the Church & State agree happily, and ‘religion in public’ is not a problem to most. Other times, the clash drives people to try to force religion into private life. And it’s different in different times. William Wilberforce fought the slave trade against much opposition. Now both Church and State oppose it happily. Church opposition to drunkenness is often met with groans against self-righteousness, etc. Recently (certainly in NZ as seen in various mainstream media), however, ‘problem’ or ‘binge’ drinking has a level of opposition that is very high. Sometimes it goes the other way. The list of times, places and issues could go on.
My main observation here is that it is not only the Christians who (at times) look down their nose at ‘the World’ in self-righteous moral superiority. The ‘world’ often repays them in kind. Whatever one’s views on sexuality and marriage are, it is not hard to see, at present, a posture of more-moral-than-thou, more-modern-and-progressive-than-thou directed from (much of) ‘the world’ to (most of) the Church. Whether it is Facebook interaction or a survey of MPs, there is a ‘name and shame’ methodology that seeks to identify and villainise anyone who disagrees with popular cultural leanings on this topic.
This posture of adversarial self-righteousness, whether in Christians or otherwise,never helps when it comes to a) discussing an issue, or b) making a difference in society. ‘Nuff said.