People do believe in freedom of speech in the US, thankfully, even if they've stopped defending gun rights in some places.
EU free speech protections are in the same position gun rights are in the US, and for surprisingly similar reasons.
This is because until the 14th Amendment and the incorporation doctrine, the Bill of Rights only restricted the Federal government, not the States. Prior to the that, state and local governments could (and did) restrict not just firearms, but other rights as well.
Hell, the Bill of Rights still hasn't been fully incorporated, so for instance, despite the 7th Amendment stating otherwise, you don't have the right to a jury trial in civil cases in every state nor the right to indictment by grand jury (5th Amendment).
Of course, some states copied parts of the constitution into their own and had some form of protection, but it was by no means universal. Massachusetts even had a state church until 1833.
HN is to a large extent a popularity contest, and people here are more in favor of free speech than guns. the US record on protecting free speech is very good.
You have accidentally properly identified the european problem and precisely the reason that chat control will pass: shortsightedness. If people only rise up to protect rights "they need", soon no rights will be left.
But guns are vastly insufficient in this century to overthrow the state, you basically only harm your fellow citizens with them.
Historically, courts have maintained that legislation is pursued under "good faith". This was the justification for not overturning ACA on the grounds of it being an unconstitutional tax: the lawmakers didn't mean to make it an unapportioned tax, even though it effectively is, so it's okay yall. Washington St just did this with income taxes on capital gains in direct violation of their state constitution a year or two ago.
Where I live, you cannot open carry. That is a direct violation of 2A, but the courts have said it's okay baby because it's not an undue burden to pay a fee and waste a day of your life. Pure nonsense. Just change the constitution for goodness sake.