Eh, "internal enemies of democracy" is way too vague. E.g. Trump supporters claim that "unelected bureaucrats" in the "deep state" are enemies of democracy. Anyone can call anyone an "enemy of democracy".
The Federal Office for the Protection of the Constitution (aka. Bundesamt für Verfassungsschutz) completed a report a few weeks ago but is required by law to withhold it from the public due to due process. Of course it leaked, you can read the report here [1] (it's in German, obviously).
Now there is a discussion ongoing, if the Alternative für Deutschland has to been dissolved. That's a fighting democracy at work, following the rule of law.
[1] https://assets.cicero.de/2025-05/Geheimgutachten_Teil%20A.pd...
https://www.thefire.org/news/blogs/eternally-radical-idea/wo...
Of course, those safeguards were designed in the late 1940s, so it's interesting, to say the least, how they cope with modern demagoguery. In any case it is worth a try.
Tangentially, that's a great site! I hadn't heard of FIRE before, but I'm glad they exist. I hope they don't get suborned by one side or the other.