The basis of solidarity doesn't matter. What matters is that conservatism is correlated with a perception of belonging to a smaller "we" which is the subject and object of solidarity.

Oligarchs are extremely narrow-minded and selfish. Conservatives such as Merkel somewhat less so.

The EU is doomed by lack of solidarity in the face of any crisis (let alone one of the magnitude we're facing) as long as the EPP is the dominant political force, as it is currently.

Market worship has both been a cause of the crisis and a factor in making it worse.

There is also a moralistic undercurrent to all this, that somehow pain is virtuous. How Christian (Democrat).

By laying out pros and cons we risk inducing people to join the debate, and losing control of a process that only we fully understand. - Alan Greenspan