I don't understand the problem honestly. I'd understand it if Poland stepped in and didn't let the company be bought out, but this just seems like bog standard normal globalized free market stuff? It would be extremely weird for France to step in and prevent a French company from buying a Polish company due to fears of stoking Euroscepticism among the polish population wouldn't it? And I don't even know what this has to do with the EU, companies have been buying up companies from other countries both in and out of the EU forever?
I also don't expect nothing other from thief then continuing to steal.
I also expect thieves to be protective of their own assets.
I'm just saying they are still thieves and any outrage in their name is misplaced.
Screw the French when they are robbed for the benefit of other countries, because they steal from other countries using their public companies as well.
If you are criticising markets in general and capitalism's tendency of bigger companies buying up smaller companies then I understand and agree with you. If you are criticising France in particular then I don't understand what you think the problem is.