Idk if you're still talking about Germany specifically or more global trends. Regarding Germany: gun control is a non-partisan issue and not even remotely part of the public discourse. Censorship of various degrees is written in German law especially when it pertains to racism, hate speech, and Nazi language and symbolism. Regarding the last, I'm not aware of the state of Germany on that point.

However, none of the points you named are anywhere even remotely near "extreme left", even by US standards. Those are all Democrat party talking points, which is anywhere from slightly left of center to center-right.

The "extreme left" (no, US Democrats are not socialists) has no political representation anywhere in the Western world and barely registers in public consciousness at all.