Good job of moving the goalposts, as you completely avoided my point - that this forum (at least, among Kings fandom) has settled upon Barnes as the "problem" or "weak link" and are attempting to henpeck him to death. This pattern, which repeats time and again, is an unfortunate aspect of human behavior, but I do believe we are stuck with it. That means, of course, that once Barnes has been henpecked to death somebody else will be the weakest link and receive the same treatment. As I said (and as I have said when we have seen this before), we've seen this before.
I'm not surprised you didn't address that point, as you're one of the henpeckers. It's uncomfortable to come face to face with the darker side of our own nature.
But, to answer your non-sequitur: I do not believe Barnes is a "scrub". I do believe that Barnes is perfectly capable of being a starter and the 4th or 5th scoring option on a team that has serious playoff aspirations. As you almost pointed out, Barnes did win a championship in 2015 as a starter and a 4th/5th (regular season/finals series) scoring option.
I'm sure your next move will be to point out that Barnes is now 9 years older (while ignoring that he is undoubtedly more experienced and skilled now, and that his shooting percentages are across the board better then when he was younger), and to ignore your own henpecking. Your move, I guess.