From this article, it didn't break down the vote, so I quoted pretty much verbatim...and we don't know exactly where others stand...just the progressive/Left and liberals (which is an intersting mix, as it is). There definitely needs to be a common policy, and a system that gives people a chance to apply, that also gives the EU a chance to check out if a person is a good citizen. AS for why others might oppose it...well, on the one hand there isn't enough work for those people here now...but, on the other hand, immigrants will be willing to do work that most Euros won't do. Plus, there is the aging "problem" in Europe, which a well thought out plan about how and how many workers could come  into Europe, could easily remedy that "problem", while gaining more tax revenues. But likely, there is a certain portion of people who want to make Europe a fortress against outsiders...

"Once in awhile we get shown the light, in the strangest of places, if we look at it right" - Hunter/Garcia