Why there arent reworks or changes for champions that are actually unfair?

First of all, apologies for those mains that play the champions I'm gonna point out here, I don't enjoy playing the game and being unfairly killed everytime there is a champion with a "cancer" kit.

Yesterday I was playing anivia and I was against a lucian, who obviously dodges all my stuns no matter what and reduces my health to 20% with q double auto at lvl 2, i understand Lucian is an early game champ but he is so abusive with the kit by itself that even mid or late game we dont have a chance to do anything about him with a champ that rely on skillshots. I ended up winning the game by rushing towers when they were derply killing my teammates but we were in a really bad spot cause their champs.

They had diana too, and I found a diana again today, she just one shots you with a point and click ability, the question is, how I can win the game if I cant survive her or kill her, no matter if I dodge all her qs and ult when she ults, i still get one shotted, i was tristana in that game with 6 kills and ended up losing because she just one shot everyone because she is Diana...

The thread itself its not about Diana or Lucian, its about why there are champs with kits that are so unfair that you can't do anything against them no matter how good you are? So as soon as you see one of those abusive kit champions on champion select you are forced to either have at least equal number of unfair kit champions in your team or dodge losing lp and time when you know there willbe another one in the next champion select...

I play since season 4, I'm plat 5 right now in flex and gold 1 in soloq close to promo, I main support but I can play all the other roles decently, and some champs really good even if they are not in my main role, but i keep finding this stupid matchups where doesnt matter how good i do I always need someone else with another unfair kit to beat that guy...

The next VGU is Swain, who is in a good spot but quite old, I understand that they want to give him a VGU because of that, and then Irelia who I dont think needs an VGU anytime soon, but then why they pick champions that are decently in the current meta and stable but not champions that are frustrating and unfair to play against, those champions makes me want to suicide when I cant do shit against them...

I would make a list but everyone knows there are many of them, every champ has its weaknesses yes, but most of them are not unexplotable without a broken kit.

I'm gonna write some examples of some of the champions I really get frustrated when playing against them.

Undodgeable stun, one shot with common build with a point and click ultimate that prevents you from leaving no matter what, so, you can't do shit against him because you are forced to be melee with an "assasin"? (I know he is not an assasin but he is way too tanky and too much damage for no reason), how I'm supposed to face him?

Ey, I have AOE, an slow, a dash, a teleport, an area stun, a shield, I can dive you and even if you try to kill me or use your spells on me I can just press R to be full health again and never be beatable. ??????? I never had a chance to beat an Ekko on midlane, not 1 v 1, ever.

Ey, I'm lvl 2, q (target ability), w (if melee undodgeable), auto ignite one shot, snowball until the game ends. If you want to poke him he has more range with the w that also slows and if you don't watch out he will one shot you again, he can jump any wall and he has another esape with the ult that also allows him to be in stealth and prevent any cc, exhaust, defense against him or to pick him. ?????? Wtf is this champ

R, 4k dmg no matter what, em... Even if we try to stop her ult by ccing her, she deals at least 1k AOE damage in that second, she is stupidly mobile and can also slow you from range... wtf... She is almost imposible to kill if you are not a tank.

This is the least unfair of all of the champions i wrote about here, he is weak early... w e q half hp away....... really hard to dodge because the shadow appears so fast... and then, when he gets some kills, its like if he multiplies the number of kills he got, 3 kills? damage like if he had 10, 6 kills? damage like if he had 20... And then, me, as reksai, with defensive items (tabi and ), he just q autoattack and one shot me, mid game...

Okay, I guess I will be filled with negatives but I know many of you are frustrated when playing against champions like those, and you can't tell me otherwise because this is and never was a balanced game, I just want to know what do you think about abusive champions, their kits and riot doing nothing to make the game more healthy.

I dont want to play a game, see two of them on the enemy team and instantly having to dodge the game because I can't survive them even if i play better than them. I just wan to play the game like a competitive game where the skill is involved, not just the picks and the luck.

Now you can call me kid like everyone when I tell my opinion about the game, all of what i wrote is my personal opinion but from a game design perspective I'm sure most of the stuff is right, unhealthy game...