[Bored chemist]

Unlike the Brexiteers, Europe has recognised that it made a mistake.

https://www.ema.europa.eu/en/news/covid-19-vaccine-astrazeneca-benefits-still-outweigh-risks-despite-possible-link-rare-blood-clots

[Petrochemicals]

If there had been blood clotting it would have showed up in the UK by now.

 The EU has a problem because the pro european proportion of European populations has now had brexit shon in their faces, so in their own countries they look weak to the anti European component. Europe is not united in the EU remember, politically(this isn't really the place for political converse, more like "just chat") they are divided.

www.express.co.uk/news/politics/1391320/eu-vaccine-news-germany-von-der-leyen-merkel-pfizer-astrazeneca-Hans-Olaf-Henkel/amp

 It appears the more stable the country the less pro EU they are. Germany Spain France have not had the smoothest recent history, the fact that old anti fascist stable Britain has left the EU is a great slight to the Pro EU faction and their branding of the EU, if the British can't stand the EU it doesn't say a lot for it, Britain now needs to be the far right country to make the EU look good

So we need to be careful with the French.

yes we do, most likely they will agitate some country, get into difficulties and rope us into another war. The US will try once again to side step the issue but eventually have no other choice but to be involved. See treaty of versailles.

[Bored chemist]

Since the UK left the EU, the appetite for leaving, as shown in other EU countries has lessened.
They have looked at us and seen that it is a bad thing.