As a German, let me tell you that this sounds absolutely ridiculous, arrogant and hubristic. You want your German Extrawurst. We're not "one society", not everyone agrees with the tons of laws and regulations we have (mostly on account of special pleading and lobbyism).
German users came to Facebook and Twitter first, not the other way around. These are not German companies, they don't need to operate out of Germany, so why should they have to follow our every law? If anything, you'd be "teaching" them not to bother with Germany, because it's too much of a pain in the ass.