Sweden recognising Palestine or not is somewhat irrelevant now (after all that government was never going to be in power for ever) that Europe is gradually going through the motions of non-binding recognition anyway, but in order to bring this mess to a close it is going to require the USA to genuinely attempt to bring it to a close to date the US mediation attempts have been to impartially agree to everything Israel wants while generously recommending the Palestinians agree to it as well.
The good news is that things are changing in the US as seen by the recent growth of support for the BDS movement on US campuses.
Latest polls show rather dramatic changes in US thinking on the I/P issue with almost as many people now thinking that the only solution to this process is a one state solution rather than two and a one state solution is the end of Israel as a "Jewish" state.
http://www.brookings.edu/~/media/Research/Files/Reports/2014/12/05%20american%20opinion%20poll%20israeli%20palestinian%20conflict%20telhami/israel_palestine_key_findings_telhami_FINAL.pdf
Hang on a second you can not continue to argue that all this is being done in isolation, so far you have argued that the USA isn't the only country in the western world now state Germany is not the only country in Europe the fact is that the Western world is propping up Israel, Both Britain and France are supplying weapons as I think are Spain (I assume this because during the Gaza war Spain stated that it was reexamining its exports to Israel).