Well, obviously those types of restrictions wouldn't apply to everybody anyway but still.
I think Germany can pass the laws the people there want passed, and I think private American companies can choose to comply with those laws or not - provided they're willing to live with the consequences of their choice.
I wouldn't support a law saying private companies lose all control over what gets posted on the sites that they developed and operate with their own resources.
Ancestry.com should be able to delete off topic posts, for example.
Your approach would turn every site into 8chan and you couldn't care less about how badly it impacted the value of the owners' private property.
And your transparent dodges that exclude sites you like, like FR, from your big government approach are just that, transparent dodges.