The financial gulf is orders of magnitude bigger now than it was in 2008 mate. Nobody can compete with the top Spanish, German, Italian, English and French sides financially anymore.
I'm not saying its impossible btw, Rangers and the scum are two clubs who are definitely capable of doing a lot better, in every sense, than they currently do within the confines of Europe. Whether that be receiving higher transfer fees and sponsorships to fund their efforts, producing quality youth players, recruiting quality players on the cheap from around the World etc, there's no reason why the Old firm cant be on a level eventually with your top end "second tier" nations clubs, llike top dutch team, top russian teams, top greek teams and so on.
Of course many of these clubs receive higher TV income, but for most its a minimal amount more than us.