You cherry-picked numbers to support your case relative to the RS, so I cherry-picked numbers in reply. The six European Cups in their trophy cabinet, sadly, are what they are. Suggesting that you have more of a history than they do is, frankly, nonsense.
What strikes me is your sensitivity about the whole thing. Winning solves a lot of problems. You're a club with a sizable local fanbase that didn't have the hardware to suit until recently. You haven't had the players that left an indelible mark on the game.
That's all changing, and it would seem overwhelmingly likely that in the next five to ten years you will have an overall trophy cabinet that's right up there, and a generation of kids out there that have never known the club to be anything but serial winners. That's when you become a destination for the world's top players, rather than a Johnny-come-lately whose success might evaporate if the manager decides to take another sabbatical before taking on a new challenge.
This is an interesting perspective, as we don't really think this way on our side of the pond. I suspect this is due to the nature of college sports, which naturally produces large, loyal fanbases for land-grant schools with large enrollments whose programs haven't much accomplished anything. Those teams will sell out large stadiums year after year, win or lose, so having good support is the most basic of expectations.