The crux of it is that they are not anti-democratic.
German law tries to protect against anti-democratic groups and categorizes them as extremists (including left wing extremists) if they a threatening democracy.
In practice that means that group is then surveilled. If there is evidence that the group tries to overthrow democracy, they are banned.
Die Linke is in many ways _more_ democratic than other groups and parties as they support direct democracy and workplace democracy.
> The crux of it is that they are not anti-democratic.
Die Linke tolerates antidemocratic hate groups within their party and is a financial sponsor of others. All of this is common knowledge, all of this can be looked up easily.
> Die Linke is in many ways _more_ democratic than other groups and parties as they support direct democracy and workplace democracy.
I know quite a lot of parties that were never once watched by a government watchdog, nor do they continue to support extremist groups, nor do those other parties continue to attract extremists at their demonstrations, nor do those other democratic parties have a continued problem of antisemitism within their ranks, nor do they have a dark past and continue to employ people at high ranks that were leaders in that past.
German law tries to protect against anti-democratic groups and categorizes them as extremists (including left wing extremists) if they a threatening democracy.
In practice that means that group is then surveilled. If there is evidence that the group tries to overthrow democracy, they are banned.
Die Linke is in many ways _more_ democratic than other groups and parties as they support direct democracy and workplace democracy.