That's why Germany to the very last moment was opposing arms sale for Ukraine and until the 3rd day of the Russian invasion on Ukraine was opposing sanctions. Blinken was not getting off his plane for good three weeks while traveling to convince European partners from Italy, Germany, France, Hungary that Russia is a real danger and has to be stopped. Long time has to pass before Germany will be consider to be a trusted partner, their silent support for Russia was clear not only to Poland or Baltic countries - Finland, Sweden, Norway, Denmark, Romania, Moldavia, they all have seen what is happening and will think twice before trusting Germany.
Nobody sane will undermine the role of NATO and USA/UK when it comes to European security, over my head I see US and UK spy planes and drones that are flying all days and nights over eastern Poland, providing intel for Ukrainian forces.
No country in Europe is capable of pursuing large military operation, France stumbled over their own feet when trying to change ruler in Libya several years ago and France has the best army in continental Europe. Go figure that! They needed US support at the end.
Another big problem is the pathetic state of German army, especially heavy component, luckily they have just decided to put significant amount of money on making Bundeswehr a real force since right now with its 300 tanks (three times less than Poland) it is a sad joke.