How to find the magnitude of each player and not all players together?

I've created a spawn system that finds the magnitude of all the player's characters humanoidrootparts and spawns you away from them if they're too close to a spawn point.

It works in theory, but in practice it "works" until you spawn directly on a player.

PROBLEM

I've narrowed down the problem to the fact that whenever it finds distancefromplayer it's taking EVERY player's position and subtracting it from the part's position then finding the magnitude.

Meaning if there are 3 players in a game and Player1 is on spawn 3 but Player2 is across the map. When Player3 spawns, he could potentially spawn direction on top of Player1 because the magnitude between the two is greater than the min. BUT if both Player1 and Player2 are on spawn 3 then Player 3 has NO chance what so ever to spawn on that spawn point.

local sspawn = {}
local mindistance = 80
local availiablespawns = 0
local players = game.Players
local children = {}
for i,v in pairs(players:GetChildren())do
    if v.Name ~= player.Name then
    table.insert(children,v.Name)
    end
end
                     for i, g in pairs (spawns:GetChildren()) do
                                if g:IsA("Part") then
                                if children[1] == nil then
                                else
                        for i = 1,#children do
                                local kiddo = game.Players:FindFirstChild(children[i]).Character.HumanoidRootPart
                                local distancefromplayer = (g.Position - kiddo.Position).Magnitude
                                    if distancefromplayer >= mindistance then
                                        table.insert(sspawn, g.Name)
                                        print(player.Name.." spawns", "Distance: "..distancefromplayer,"Spawn: "..g.Name)
                                        availiablespawns = math.ceil(#sspawn/#children)
                                    end
                                end
                                end
                                end
                                end