Do you read the BIP's? Its not like core are sitting there saying 1mb is good forever, just that the solution isn't to suddenly throw 8mb patches into the mix. Further XT is basically Gavin and Mikes coin, are you confident that you want to trust the future of the project to these two dictators who, even if other devs join them on XT, could just do the same thing further down the line when they want to change something else.
Perhaps the time has come to put demarchy into practice. Or, if digital autonomous corporations are in the pipeline, perhaps we can persuade Bitcoin to develop itself. I'm finding the human element in all this exceedingly tiresome.