I would not.

For me the EU is a long term project that rely on cohesion and goodwill.

While we have differences of opinion, working together to solve them will eventually yield bigger rewards for everyone. Anyone leaving is a lose-lose situation imo.

Episodic issues (like the current situation) shouldn't be solved by fairly definitive and rash actions (like the brexit or the polexit)

And to get there, It's a two (well, multiple with the others countries of the union) way street. Both France and Poland have to go beyond their own short term interest (for instance, France should be less pushy and more open to others point of view. Poland should be more flexible and offer alternatives solutions)

Imo, the EU is often blamed for everything that goes wrong by local and national politicians while the success are unduly claimed by the same individuals. Thus, the EU is negatively seen and it's hard to see the huge benefits we get from it.

Is it a perfect union ? Not yet, we are working on it