what happened if someone in your team or op team fed so much like10-0

Ok so we go from the top to bot,first about top,its kind for champs like zed,darius,xin,garen the most,... What will happen if they fed much,i will tell you top fed much is more scarier than bot,here is reason if someone at top is 10-0 you dont want to know what happened if you solo 1v1(both of you are full health and mana if have) its very hard to solo with them,you only hope that someone go with you to kill easily,its very seriously,my nasus cant defeat fiora and at late game she did triple kill so easy with just 1 helper. Ok now is mid,perfect for champs like yasuo,zed,jhin,orianna and more..well when they fed so much your only hope is your jg will gank them .and mid is scarier than top,the reason is if you fed mid much(yout team or op team)you will see how fast they kill an enemy i am sure even faster than top.if you watch faker at mid,you will sure that mid is the most important lane cause its the fastest way to move from your nexus to their nexus,and also the lane have most team fight,so when your mid teammate is losing,ganked it! Now its about bot its not the most scariest cause 2 reason,at bot usually have1adc and 1 support,you can easily gank it if they dont put eyes,traps,..and heath we all knew ad kind of weak at heath cause at the start or mid of your game ,you must buy things to improve your power,these champs like ereal and jhin,kalista,varus,..well what happened if they fed much,of course they won the lane but however you can easily won back the lane by ask help of your mid and top(if they are winning) adc can easily be shut down cause they need range to shot and their support likes lulu,leona,blitz...need to build tank and little damage... So bot is the most easily ganked, Here is the final,jungler,i really love to be jungler,if they fed much then they can carries team,trust me.although jungler at thw start of the game may not lvl fast than mid or top,but when they fed much you will his true power,do you know once a time i played yi jg and fed much,end of the game i ended ashe so quick about 3 to 10 sec.they can carries team,help team push lane faster,but they can be unbalanced between choice gank lane or continue jungling.in my opinion i choose jungler is best then mid,top and bot is final Here is the question:what is your opinion,if someone fed much ,can they carries team?or solo 1v2? And how to shut down them? Pls comment soon or else i gonna wreck my com,thier zed so op cause our annie feeding,..need your answer soon