@RIOT GAMES ITEMS THAT GRANT SLOWS HUH?

I was talking with a friend who stated that he feels items like are too strong. He thinks they should be removed from the game, but what I don't think he realizes that there are champions that need these items to make their kits work. There are a lot of champions that were designed with no CC or kits that require a certain counter or mechanic to make it work. These slows may seem a little over powered, but if you really think about it these items are functioning as intended.

I think if you remove these items from the game you are going to be left with champions that are going to fall off very badly. Champions like Tali, Sol, and even Brand need the slows to make their kits reach its full potential. If Riot removes these items then they have to create more work for themselves and go back and update every kit that utilizes it. If Riot gives us more options to negate these effects, like they did with Boots of Swiftness, then there are champions that abuse it. It seems like win-lose situation not matter how you look at it.

What are your options with dealing with slows on items and champion that abuse it for the wrong reasons?