Good luck getting enough land to keep a hundred Dukes happy.
You don't have to give the land to all of them, just to the unhappy ones.
Also, gifts.
A rogue King is no threat once you have 900+ holdings. The most bothersome part of the fight is raising and gathering the levies; once you have done that, what does it matter who you are fighting if they are ants one way or the other?
I suppose you're right that they aren't threats.
But regardless, it's still easier to deal with a lone duke rather than a king, both time wise and manpower wise.
That is easily solved; just keep your heir strong and you will have more than enough stored land to give away once the succession happens.
That's assuming you want to give your heir land. And assuming you don't have more kings that hate you than land.
We were talking about a nation two or more Empires large; the AI cannot really beat your army, no matter what.
I'm not arguing
if an AI can beat your army, I'm arguing about if they somehow
did. Or your army got eaten up by attrition. Whether they can or cannot, is besides the point entirely.
I can't speak for everyone, but since Holy Wars only work one duchy at a time and claims can be used to get whole Kingdoms in a single war, by the time the last heathen falls I quite much own the map.
While you can press for kingdoms at a time, you could run into situations where there are fractured kingdoms or where there are no claimants that want to come to your court. I've often struggled to find claimants that wanted to come to my court.
They have to hate you in the first place, don't they?
Yes, often they do have to hate you in the first place. I'm pretty sure I've never said otherwise.
While I will be the first to admit that the RNG can throw a blunder in the player's plans, it is always within the player's ability to circumvent their fall.
I doubt it. If the RNG somehow gives your heir's heir crappy traits, kills your heir, gives ALL of your vassals Ambitious and then they start plotting but refuse to stop or you never find out the plot, and then you have 90% of your kings revolt for a claim on your throne, I question if it's still within the player's ability.