Why is Irelia allowed to ddos me by pressing E?

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So how do any of those stop her from destroying my back line with trinity force + full tank, she may have so counters (WHICH ARE NOT EQUAL TO COUNTERPLAY) but she has no counterplay, just gut her until the rework please.

same way you stop a hec/vi/jax/anyone that goes tri force and full tank you peel em off, they do a lot of damage and have pretty good cc and damage but theyre stupid easy to peel off once their shit is on cd

irelia is fine i dont see why so many people complain about her, shes just like any other melee

You do that by not diving the enemy adc and instead protecting yours. If Irelia goes full tank after Triforce her damage will fall off very hard as her true damage doesn't scale after she hits leve 9. At that point, 75 true damage is alot cause most people have like 1000hp at that point but at level 18 everyone has atleast 2k hp and 75 of 2000 is not nearly as threatening as 75 of 1000. If she opts for more damage items (Bork or Ghostblade) she dies fast cause has 0 tank stats so what you do is help your adc kill her. Most of her damage is single target, and her ult will only hurt more than 1 person if you atre standing behind each other, so basically she can only focus on one target which makes it impossible for her to kill your backline, she can either focus the ADC or APC but never both. If she uses her Q to gapclose to one of them they will have lower hp than her making it impossible for her to get her stun off, if you are playing one of the adcs with a dash you use it to reposition and kill her, if you are playing an immobile adc like Ashe, Kog Maw or Varus for example and your ult is down then you have to rely on your support to cc her for you. In higher elo people know what kind of threat Irelia is for your adc during her midgame spike so instead of brainlessly diving the enemy adc they actually use their skills defensively and help their adc kill Irelia.