Yet if a citizen of the country makes the same identical speech and has the same identical ideology, it’s now 100% acceptable and should carry no legal conseque

Yet if a citizen of the country makes the same identical speech and has the same identical ideology, it’s now 100% acceptable and should carry no legal consequences? What is it about the specific combination of speech and citizenship, which suddenly creates a danger for society? What about speech which is done anonymously, is that more or less dangerous that the same speech made by a known citizen? Should all speech require proof of citizenship beforehand?