You are making the wrong assumptions. I am a EU citizen, but live in the US. I will vote in an heartbeat for a 1st amendment like in an Europe law. You just don’t see how Europe speech is reatricted, and how laws like GDPR contributes to it.
You're moving the goalposts. Your statement suggested you want a US-style "1st amendment" in Europe. I don't. That has nothing to do with "free speech" as a concept.
Under the US interpretation of free speech political donations are protected as "speech" and politicians can go on TV and say they want someone to be murdered and not face any consequences.
I'm German so you can imagine why I fundamentally disagree with that notion, even if our laws are sometimes a bit too strict (though that often has more to do with post-WW2 denazification than free speech in particular -- e.g. not being allowed to put nazi symbology in video games, not even as enemies).
UK libel laws and their advertising code are another example of European laws being a bit too strict. But even that is something I'd prefer over the "law of the strongest" in the US.
EDIT: Free speech is obviously a great idea and an important right, but the problem with freedoms and rights is that they can't be absolutes when you live in a society with other people you want to share those rights and freedoms ("your liberty to swing your fist ends where my nose begins"). Additionally some of those freedoms and rights are mutually exclusive so you need to define an order of precedence. Even free speech absolutists generally draw the line somewhere (e.g. generally violence isn't considered speech even if it is a form of expression and few people would defend the right to shout "fire" in a crowded building and not facing the consequences of the resulting mayhem).
In other words "being willing to defend free speech" is a meaningless platitude unless you first define what you consider the acceptable limits of that freedom.
The First Amendment protects you from the government. Facebook censoring you is not prohibited by the First Amendment. More broadly, I don’t see how GDPR interferes with one’s right to lawful political speech.
It says nothing in the text of the first amendment that direct threats of violence are not covered. If that restriction is compatible with the first amendment I don't see why a future right to be forgotten can't be.
Blockchains storing social data is good example. It's infringing by nature GDPR. A decentralised facebook-like social network on the blockchain is not possible anymore. Each node can be sue. It had happened with TOR exit nodes.
IANAL, but crypto-shredding seems to be a viable way to meet GDPR deletion requirements, making it possible to implement compliant blockchains. Of course you'd have to make the nodes comply, but that has nothing to do with blockchains.
But I still don't see the connection with the first amendment.
Yes, protects, it doesn't require them to. Facebook and its likes volunteering to destroy personal data on request really doesn't have anything to do with the first amendment at all.
Edit: come to think of it I'm not even sure it protects them, but again, it certainly doesn't require them to store or transmit anything.
If you want to run a social media platform, GDPR is infringing your freemdom of speech. You can argue that it’s worth it, for the illusion of more privacy. I just don’t think it is.
If on your social network someone wants his posts to be removed, you have to comply under GDPR, or else. HN for example doesn’t allow to remove your comments after some time.
If it's a part of conversation - like most of social media posts -, I would assume it's fair use to keep it. Like if I interview you, and I publish the video, you can't retract what you said. Why social medias should be different?