I said this in another thread, but... the damage thing is not inherently a problem. It's a perfectly valid way for the game to be. It just happens to be one that you and I both dislike.
But... Riot has millions of players. Maybe somewhere out there there're 10 million players who just happen to not frequent these forums who absolutely LOVE the higher damage version of LoL.
Or maybe Riot's team is just interested in seeing how something like this works out from a gameplay satisfaction perspective... afterall, people REALLY hated the tank meta where everything was just stall for lategame and nobody died unless a 6-item ADC went untouched for a while. So they could be trying a high-damage meta to see how it works for the sake of seeing if it works better, or to help them get more data to find a middle ground.
It's important when offering feedback to realize that you not liking something about a game does not make it BAD. That doesn't mean you can't offer feedback... you absolutely should. But just make sure to state your feedback in the context of YOUR PERSPECTIVE as opposed to generalizations like 'it's not helping' or 'this is bad'. They just confuse the issue and make it harder to glean your actual feedback out of the post.
I posted this in another thread as an example of the same point, but here's how I feel about the state of damage in the game:
I dislike the level damage has gotten to because it makes it much harder to play as someone whose reactions are not great, and it means that many of my favourite champions(enchanters) feel like they have very little agency in the game right now since their primary strength is significantly less valuable if people don't survive long enough for me to take advantage of it. I also feel like there are fewer decision points during fights to be made, which makes it feel less interesting for me.