If that were true my elixir storage would not be full all the time.Game gets boring after a point. The amount of resources you raid is less than the amount you spend on the raid. No one actually notices this so you just feel happy when you raid a lot of resources but actually you end up losing from the raid.
If I don't get at least 3L resources in total I don't raid. I spend about 60k elixir on a raid and get at least 100k.