Disagreement is not Hatefulness
Disagreeing is not the same thing as hatefulness. I’ve seen much net chatter that equates “disagreeing” with “hate.” One can disagree hatefully, but disagreeing/thinking someone or something is wrong, is not in and of itself “hateful.” If so, then the very act of disagreeing with my disagreement is hateful in itself.
Specific example: when a church takes a stance against homosexuality. This is not in and of itself hateful any more than standing against murder is hateful to criminals, standing against abortion is hateful to mothers, or standing against violence against women is hateful to men. However, in every specific example mentioned, to stand against something means that one must engage those who promote it. If murder, abortion, homosexuality, and violence against women are all sins, then they must all be dealt with (each in their own way given that they are all of very difference natures). To “leave them be” would be both unloving to those affected and both unjust and unloving in relation to those promoting (I should try to prevent murder both for the sake of the victim and the sake of the potential murder who would also ruin his/her life). Again, there is a right way and a wrong way, and the church has not always chosen the right way. But to ignore or side step these issues is always and everywhere, the wrong choice.
Let me finish with this. Some sins are socially permissible, but still undesirable. Consider the national campaign against obesity. New York even passed a law (if it is still in effect, I know not) limiting the size of sodas. They did this because sodas are bad for people. It hurts them. Do people enjoy them? Undoubtedly. Do people know they are bad for them? Surely. Do they care? Even those who do, sometimes “just can’t help themselves.” I don’t think one can make a case that drinking soda is unbiblical. But the other examples I listed above, all are biblically wrong. Though the world endorses some of them, they have no place within the church or in the lives of believers. To do so calls God at least irrelevant, and at worst, a liar.
Therefore, as far as the church is concerned, within the walls of the church, when I disagree with you, I am actually loving you and trying to help you in conforming to the image of Jesus Christ. Outside the church, when I disagree, I am trying to make society a better place which is what (good) politics is all about.