That's perhabs the worst election analysis I have ever read in my entire life.
You may not like it, but it's all true and you know it ;-)
But I can imagine that you mostly read "analysis" from the German left-wing media propaganda networks, so you're reading crap every day and election. No wonder you're shocked when reading reality. Sorry, not sorry.
If we're talking about the German public GEZ-paid media (pay for the propaganda or get jailed in the "most free Germany of all time"), yesterday I saw an Analysis of the ARD/ZDF talk Show guests in 2017:
CDU/CSU 29 appearances
SPD 24
Greens 12
FDP 8
Linke 8
AfD 1
Great Democracy we're having. But of course, the German media is totally non-bias - let's get outraged about RT Propaganda! ;-)
Can you please stop calling the major German television networks "left wing"? It's ridiculous. You should review their coverage of the Greek crisis 2015 - it was propaganda all right, but it was pro austerity all the way.
Die Linke is a left wing party - would you really suggest ARD and ZDF support Die Linke?
For sure, they don't support AfD either. But that seems to be your only "proof" for a left bias. Please be serious!