Something needs to happen

Something needs to happen about late game teams just winning NOT based on skill, but based on how much cc the team has. It's stupid. I'm not talking about LATE late game where everyone has six items. I'm talking about how much cc a team has being the only deciding factor in gold elo or below in who wins and who loses. I'm tired of having games that we had an amazing lead in but we can't engage because of how much cc they have. I get that there are certain team comps specially made for late game skirmishes, but if a team is THAT ahead, then they should be able to close it out. I get if the team ahead does something wrong and throws, but it's super frustrating. I am a Kha'zix main (OP.GG Yuvn Ti) and I've seen this for about the whole season. Late game Nasus, Sejuani, Malphite, Sion can be COMPLETELY shut down, denied cs, camped, and more. If you check my recent 15-20 games, You can see that I consistently get most to every dragon in the game. I consistently gank the lanes that need assistance and I consistently get kills or summoner spells, and in turn get dragon or turrets off of that. But when my entire team does amazing but they win just from stunlocking us, it becomes agrevating. I get that this is Kha'zix's main weakness, but it seems a bit excessive for me to lose this many games for the same reason: I can't move late game. You have probably seen this too. Something needs to change because There has been one game so far where I didn't have a positive KDA, and even then I secured every dragon and baron and rift herald objective. I still am winning enough of these games to barely miss demotion a few times, but this is complete bullshit.