Remember that most of the participants in J6 walked away and were later rounded up and arrested across the country once the FBI had collected voluminous digital and surveillance evidence to support prosecution.
Fortunately for us (or really unfortunately for us) most of the competent FBI agents have been fired or quit, with the new bar simply being loyalty to the president.
The FBI is weak now compared to what it was even two years ago.
The J6 insurrectionists committed real crimes, and it's very good that they were rounded up, but afaiu most of the evidence had to do with them provably assaulting officers, damaging property, and breaking into a government building. Not that they messaged other people when they were legally demonstrating before the Capital invasion.
The real protection for the legal protesters and observers in MN is numbers. They can't arrest and control and entire populace.