EU-Mercosur deal: What's the real reason behind European countries stalling the pact?

European nations appear to be using the garb of genuine issues like environmental protection and labour rights to maintain a degree of protectionism to safeguard their own economic interests in the EU-Mercosur deal

EU-Mercosur deal: What's the real reason behind European countries stalling the pact?
European nations appear to be using the garb of genuine issues like environmental protection and labour rights to maintain a degree of protectionism to safeguard their own economic interests in the EU-Mercosur deal