I don't have any expectation of MLS ever surpassing the Top 5 in Europe (Premier League, La Liga, Bundesliga, Serie A, Ligue 1), but I hope the league sets goals to pass LigaMX, clearly surpass the Championship, make itself at least the near-peer of the Primeira Liga, the Eredivisie, the Belgian Pro League, and the other leagues that are a step below the Top5; if MLS can't clearly pass the Scottish Premiership within a decade or so, that would have to be considered a failure in my eyes. Move from a clear minor league to a middleweight league.
Maybe MLB sucks in your eyes because you're watching the Royals?