There are ways to counter the ban on luxes. If you have a monopoly on a lux, don't be stingy: trade it away, either for other luxes or for money. Just make sure that there are other civs who also have that lux, and they will vote against the ban with you (it's in their interest). If you don't have enough delegates to become WC leader yourself, then use your votes to choose a leader that you think will be friendly to your cause, like a friend who you're trading those resources with. Then you can be pretty sure they won't make those kinds of proposals. You can also try to buy delegate votes from other civs through trade deals. The point is, you can no longer be passive in your diplomacy, you have to be active about it.
And don't play the unrepentant warmonger any more, because that will get the world against you, just like in real life. Do you think Germany had it easy declaring war on the world twice? No, because most of the world turned against them. You can't just start wars willy-nilly any more, you have to go about it skillfully and diplomatically. Make sure you have a friend or two to trade with while you fight your foes. And pick them carefully. Staying on the good side of stronger civs can buy you time to vanquish your weaker foes. But ignoring diplomacy will often end up isolating you, and you don't want to be there unless you are really powerful. So make some allies/friends first, take down your common foes, and then finish off those 'friends' later when you've strengthened your situation. It's all about intrigue and backstabbing; it's what they call politics.
. 1st WC frigging Rome ask for ban of them. As you can tell this did not sit well with me. So on renewals I gave them for free. It failed 11 nay to 1 nay. Yes, I did not give Rome any!!
