You're German so I can forgive you this once for being an easily propagandized fucking idiot.
Prior to the invasion, Ukraine was known as the corruption capital of the universe, whose upper strata was more or less comprised entirely of no-show jobs programs for the children of various elites, criminal sex traffickers and then a few oligarchs.
As the invasion happened, western country elites have tried to funnel all anti-government, racist sentiment feelings into supporting Ukraine (eg: Azov). When if you take a step back and look at things, you realize immediately that the country and everything in it is just being used as a disposable cudgel against a rival power because western powers ascribe almost no value at all to the people in Ukraine. In fact, the Ukrainian government itself holds no value to these people either, which is why it's now in an unwinnable war. What is worse than then sending soldiers to die in vain? Sending more to die in vain.

Knowing all this, why the fuck would anybody want to help them.
Notice too how this criticism ignores entirely any discussion on Russia or Russians, because that is a red herring to this criticism.