I would say there is a rather fundamental moral difference between, on the one hand, a government that, despite trying to achieve that (immigrant) minorities get the education and jobs they need, fails to enact appropriate legislation and policies that work (re: France and other western European countries), and on the other hand, a government that intentionally incites hatred and existing prejudices, and refuses to protect free speech or to enact appropriate legislation and policies (re: Poland, in this case).

There is even a moral difference between a minister calling people “scum” because they are setting fire to cars, buildings, bus passengers and the police (however unwise it may have been to use that word), and a (prime) minister and president calling people diseased and contagious, and saying society should be cleansed from them when all those people want is just to demonstrate peacefully for more recognition.

I don’t think this will go far because the Poles can always kick the other European countries over the blatant, daily, and continuous discrimination against non-European minorities in the other states.

What’s good for the goose is good for the gander: do you think the French would welcome an EU investigation into the treatment of their minorities in light of recent events? Or would that be blocked, so the Poles (and Dutch and Danes, etc.) could complain that there is one set of rules for the big countries and another for the small ones, as there already is for fiscal policy?

I read that somewhere too. It would not even surprise me if they were successful, the current, post-constitution, eurosceptic tide being in their favour. And (the universality considerations of the above put aside) at first sight this should not even bother me, because if responsibilities are moved away from the EU level giving Poland more autonomy in this area, this will also give Poland less influence on other countries in this area.

But at second thought this is not true because of the way everything is connected to everything. You cannot have free movement of people, one of the basic EU freedoms, for instance, without an agreement on equal treatment. Even the fact that some countries have gay marriage and some don’t is already causing problems in this area, when married couples try using their right on free movement to move to a different EU country which does not recognise their marriage.