Merkel's regime already tried that as far as I remember.
Not quite. The powers that be have however repeatedly tried to manipulate circumstances in a way that would either see the AfD being officially put under observation of state security for "working to undermine the constitutional order" (that's broadly the accusation here, which in and by itself is already so random it can be used against whatever they want). Which is a giant black mark and public relations fiasco for the AfD since it basically signals to everybody who isn't politically involved in one way or another (and that's the overall majority of people) that the AfD are bad news, are against the democratic order, and are basically on the same page as Nazis (since the only other case that has received media traction for the same accusations during the past 20 years was the neonazi NPD party).
Why? they choose suicide.Hating people who choosed death is rather without sense.
P.S If green was serious about removing people becouse they hurt Mother Earth,they would start with tchemselves.
I hate them because they'll make the situation for everybody else who's not a lunatic so much worse. I can only suggest for everbody to take a look at their electoral program. It's a nightmare bound to financially cripple the middle class, the economy, and lead to an irreversible flood of immigration that'll drive this country against the wall in five years or less.
As for the AfD: they have been their own biggest enemy ever since the 2017 election. They've continually been occupied by inner-party intrigues and fights between cliques, their handling of the media has been less than stellar, and they've thrown away much political capital by having official party members march along-side the more kooky members of the anti-corona-policy demonstrations of the past year. They had all the chances to build even greater support during Merkel's last term, but they primarily made headlines because of their inner-party witch hunt against the far right "Flügel" (literally "Wing") of the party centered around Björn Höcke and the largely successful Eastern state party leaders. Mind, I'not making a value judgement whether Höcke or Kalbitz or others there are secret Nazis or used to harbour these ideas in the past. At least with Kalbitz there's plenty of proof at least for the latter.
But on the other hand there's no place where the AfD was able to grow as strong and successful as the east, sometimes with more than 20% of the vote. And those in the party leadership from the western states have done a damn good job of pissing on these massive voter blocks, disregarding that they are a large part of why the AfD was able to surge into parliament in the way it did. Which turned away many that had voted for the party, and certainly was a factor in the party underperforming in the past two years. They are terrible in the way they represent themselves (for example the election posters they used in this spring's state elections looked like copycats of those the neonazi NPD used a few years ago), up to the point that even my wife, who's a hardcore democratic rightwing voter, eschewed them in this March's state elections.
And now they've set their election program for the federal elections in autumn and spiced it with such gems like "abolish the Euro" and "leave the European Union". Even if you were to agree with these in principle you'd need to be blind
and deaf not to realize that these are untenable propositions in Germany right now. The party is tone-deaf, and can be happy if it manages to match its results from 2017. Personally, I beleive they'll be lucky to rise above 10% of the vote.