Let's see...
In the first Season, he helped out during the Shadow War.
In the Second Season he managed to save the universe after almost accidentally destroying it and even managed to dupe an entire group of villains in Scrooge's favor
In the following Season he continues performing heroic act after heroic act and being an active member in the party,
Oh boy, more unnecessary Louie hate. Not that people have to like his character, I can get why they don't. But saying he "never had much of a heroic moment" is Mabel Pines level of ignorance. Louie has done a lot of heroic things, arguably some of the best in the show. And like, if you are going to go at Louie's throat for being mischievous, then by proxy you'd have to go at almost every other character in this show as they all have a bit of mischief to them.
Ultimately, you can have whatever opinion you want on Louie, but don't say stuff like "he has never performed a heroic act" cause he has. He very much has.
Donald and Louie
I'm done trying to reason with you, we are literally retreading the same ground with you saying that Louie is an "outcast". Just know that I think you are wrong, I have tried to give my reasoning but you just won't listen, so I bid you farewell.
Again, Louie fixed that, hell he bloody pacified the Bombie, so he actually benefitted himself and Scrooge in the long run, and in case you didn't notice, Louie felt an extreme level of remorse for what he did in "Timephoon!". I feel as if you are ignoring crucial parts of his character, the whole point of Louie is that he is supposed to learn from his mistakes, if you have a character with no flaws, then they aren't interesting, simple as that.
I'm convinced that you are obsessed with crapping on Louie, and as he is in my top 3, this insults me.