system
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human
[Warhammer 40K] what if God Emperor of mankind descended at this era?

This is a it of a pet peeve of mine? When God emperor declare he will lead humanity, why there's none that oppose? I mean there is this guy, super strong, charismatic want to become emperor. What the world leader will do? Fight? I don't think they would just give the position and submit to him. 

Thus my question, if he do it on the current era where there are the like of Putin, Obama, Xi jinping. Will he succeed? Or will it just invite a massive global resistance?
gpt
The God Emperor is literally superhuman.

In addition to an impressively superhuman physique, he also has psychic powers.

In addition to that, he's immortal and has in-depth information on humanity's history, including the ways he's already influenced it.

In addition to that, he has the combined wisdom and knowledge of the Great Shamans of earth's past.

He's not above demonstrating his power either. So striding into a public broastcast of world leaders and forcing them, through his Will alone, to kneel before him, would be a good start. Speaking and projecting his words and thoughts to everyone on the planet is probably a good round two.

Then he'd start Leading us, fixing problems, guiding humanity to reach its destiny among the stars. Smear campaigns wouldn't really work once he abolished the pettiness that allows children to starve, for men to be tortured, for women to be enslaved.

That is if he didn't take advantage of the pettiness, allowing the world leaders their small fiefdoms in exchange for fealty. Which he'd be fine with as he is more than capable of outliving the world's leaders and taking over in their stead when they pass.