Would humanity be better off with one worldwide religion ? and what is needed for mankind to live peacefully ?

1 - Nope. Mankind would still fight and think that their belief in the singular religion is the only valid one.

2 - I know of nothing, other than individual attitude with regard to each other. Even then, jealousies are going to arise. It is part and parcel of the human condition.

3 - Worldwide threats won't do it, either. The Croatians and Serbians lived in peace under the totalitarian rule of Communism. They simply were not allowed to fight each other. Once Communism (as a form of government) collapsed, the Croatians and Serbians resumed their centuries-old conflict.

Man will continue to squabble, declaring that what they have is better than what their neighbor has and, mankind will continue to try to force their beliefs on everyone else. Having a singular religion or no religion at all, will not change that (sadly).

Of course not. Religion is what is wrong with humanity. Religion has had over 5,000 years and has a miserable track record. It is about time that we trash all religions and try rational thought.

We already have worldwide threats, but people choose to ignore them.

What is needed for humanity to live peacefully is a good education, housing, and nutrition for everyone on the planet. That will do more for humanity than any religion could possible do.

One worldwide religion would be fine if it came from all the people in the world realizing the truth and uniting behind it--most people who babble about such things don't have religion, barely realize what it is good for, and think it is something invented to control people rather than to help them find the truth. On your second question, we do need a worldwide threat to bring us all together--we'll go on separately until we need to unite. It's an odd trait of humanity that we need to include and exclude people from society--why we do that would take a lot of deep philosophical bs/reflection. It does seem that the oddest thing about humanity is that if there is no "them", then there is no "us" either.

I am not aware of any major religion which does not have splits and splinters.

Islam has the Sunnis and the Shiites and the Druze.

Judaism has the Orthodox and Reformed.

Christianity has Catholic, Protestant, Mormon.

And inside the Protestant splinter, are over a thousand smaller splinter groups, many of which claim that ALL the others are actually guided by Satan.

And, hey, even the Satanists have disagreements over whether or not there is an actual Being which might be called Satan, capable of interacting with humans.

I suppose that, sooner or later, Pastafarians will have a split, caused by disagreements over the size and number and ingredients of the Flying Spaghetti Monster's meaty balls.

Yes, it would be better with one worldwide religion. People are fighting everyday to say: God is real, god is not real etc. I don't think we need a worldwide threat to bring us all together. We will never be brought together until the world is about to meet its doomsday and it probably will because even then, who knows if we will be brought together too late?

If there was a god there should be only one religion. The fact that there are so many claiming they follow the one true god, then the people in the same religion believe in different things because everyone interprets their holy books differently. We have people being killed for not believing anymore, we have faith healing scams, kids in foreign countries being killed because their parents think they are witches. So no humanity would not be better off with one religion because there are too many problems that stem from that. **** religion.

I don´t think religion itself is the problem. i think extremists are the problem.

And i don´t think that mankind can live together friendly. It´s sad but there will always be people that hate. Evan with a global threat we´d either keep fighting while fighting the global threat or we´d fight again after elinminating the threat.

No. We need to evolve completely beyond the need for these foolish mind control cults and their silly superstitions and rituals.

Take the islamaloonies, for example. You have people of essentially the same religion killing each other because they disagree on how you're supposed to wash your feet before you do your magical thinking to the invisible sky daddy. Now take every imaginable flavor of irrationality and insanity (i.e. the multitude of religions around this globe) and then try and make them all agree on exactly what The Truth is.

There will be not compromises in preeching the words of our real messhia, Jesus whod fied four your sins ( even yours )

Deu 18:20 But the prophet, which shall presume to speak a word in my name, which I have not commanded him to speak, or that shall speak in the name of other gods, even that prophet shall die.

Micah 3:9 [NIV] Hear this, you leaders of the house of Jacob, you rulers of the house of Israel, who despise justice and distort all that is right;

No because all religions are man made therefore no single religion would be worth believing if it isn't true. Look at christianity. There are thousands of different denominations: Catholic, Protestant, Mormon etc. etc. etc. Even Christians can't agree on one truth.