All of the parties failed to even try to paint a positive picture of immigration in those past years, or at least clearly communicate the necessity of it: Germany alone needs 400.000 additional immigrants across all levels of qualification a year to keep up the workforce and keep the social systems running

And where did you get this information? From the parties that "failed to communicate" it for years perhaps, who have told us about their plans in their programs, then wrote them down for the coaltion agreement?

They told us we need immigration. They told us they wanted to make immigration easier for needed workes. And they told us expolicitly their plans. And they lost votes for it, as those plans were drowned out by right propaganda about illegal immigrants (has someone already found those imaginary millions yet)?

They also for example told us explicitly about future plans in transitioning industry and energy. And they again lost votes for it, as every moron chose to believe the narrative (from increasing totally green coal use, to prohibiting heating) instead,

Because the majority gives a fuck about information. They mostly listen to right-wing trash media.

What do German politicians transparently communicating their plans and German politicians universally hated have in common? They are the same people... As they are the ones targeted by desinformation the most and Germans are majorily too stupid to not fall for propaganda every single time.