Ken, this amplifies (and does not contradict) your statement but seems maybe a little more optimistic?Sounds like Europa has a shortage of every essential resource required for a colony except water.
Back to the gushers for the first point and nods of agreement (at least in the short to medium term) for the second. CatMJ - sorry, I was thinking inhabitable, as in somewhere people might be able to live rather than inhabitable as in non-terrestrial life might live there. Looking for evidence of life is very good reason to look closer at Europa but it does not look suited to colonisation.
Comes back to how we define inhabitable.
The expectations , IIRC, are that the ocean bottoms will have some thermal vents to allow favorable conditions for life.