Getting less Items than your opponents is like playing Texas Hold’em with just 1 card on your hand
TFT and Poker are both games with a certain amount of RNG. In Poker you don't know what cards you're gonna get and in TFT you dont know what champs or items you're gonna get.
You can have luck with good champ- and item-combinations or bad luck whith not getting your tripples or getting the wrong items. This is a healthy amount of RNG.
But getting 0 Items or 1 item while others get 3 items is like playing Texas Holdem with just one card. You have a very low chance to build a Straight, Flush or Full House! And that makes it very unlikely to win.
Get everyone the same amount of items!
, Ace, King) are more valuable but you can play around them and strategize.