The EU needs to be more vigilant than ever, though. Russia has been trying to export their nationalistic totalitarianism to the EU for decades and now the US has openly declared a goal of exporting their brand of blind ignorant nationalism to the EU as well. Both influences will boost alt-right parties if successful. The obvious intended outcome for both powers is a EU that is breaking up from the inside.
On the positive side, this shows that the EU has gained a level of international influence that is taken very seriously by other major powers. It's not 100% certain that it will survive this current wave of assaults, but if it does, it will be even stronger.
> Russia has been trying to export their nationalistic totalitarianism to the EU
Let's not pretend that nationalism doesn't have deep roots in Europe.
I don't think it's new: dividing Europe makes Europe weaker, so if you are not Europe, it is generally in your interest to divide it. Be it Russia, China or the US.
That is also why the nationalists inside of Europe want to be friends with those other players: because if you want to make Europe weaker (because you think you are better off on your own as a European country), then your interests align with those other players.