As far as the filioque goes, there are many within Holy Orthodoxy itself (including Metropolitan Kallistos Ware, as I’ve affirmed time and again) who admit that it is a non-issue. Metropolitan Ware has demonstrated that there is an “Orthodox” way to understand the filioque. I’ve also heard it rumored that several of the Greek and Syriac Fathers held a form of the filioque (but since I’ve not read it myself I’ll leave it to others to give some sources). Also, as has been said, the majority of Eastern Catholics do not recite the filioque in the Creed (I’m given to understand that Rome encourages them not to).
Please do not be so quick to condemn Eastern Catholics. Metropolitan Kallistos as well as the late Archbishop Vsevolod of Scopelos have both stated that Eastern Catholics are Orthodoxy’s closest friends in the Catholic Church. The way I see it, Eastern Catholics are the one’s hammering out what the communion of Rome and Orthodoxy will look like. While both Rome and Orthodoxy simply talk about communion and make intellectual attempts at solving our differences, Eastern Catholics actually live that communion, with all of its trials and triumphs. It’s not an easy place to be in. But I think in the future, when there is communion again, both Rome and Orthodoxy will reflect back on the “uniate experiment” and realize just how much they have to be grateful for the work Eastern Catholics have done.