I know perfectly well what the discussion is about and it isn't the bull**** you guys keep saying it is. What you want is to destroy competitors that are better than you, not to improve competition per se. You want better competition try harder and better and get your kingdom to the 25 player kingdoms level.
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Yadda this fallacy has already been shown wrong. If there are very few kingdoms with more than >20 players like pro-reductionists claim, there will obviously be even fewer new kingdoms (since many will simply leave or stand aside waiting for spots to open in their kingdom). Basically, with luck, you would get 2-3 more kingdoms out of this change.