Is World Federalist Movement's agenda feasible?

World Federalist Movement's agenda is to create a one world federal government. It has quite a number of supporters according to this link:

www.wfm.org...

Those who want to support the World Federalist Movement can contribute here:

www.wfm.org...

There are so many conflicts and wars among states, is the concept of
world government as propagated by some lobby groups such as WFM really feasible?

en.wikipedia.org...

The World Parliament is another lobby group that propagates the virtues of world government.

www.worldparliamentgov.net...

World Parliament's agenda:

www.worldparliamentgov.net...