Then let me revise.
He's likely going to be enraged and shouting into the future, so it's important that LE get a grip on how to handle him.
Dozens and hundreds of perps are unruly. Most of the time, LE (where I live) tries hard to anticipate that, so as to avoid awkward photos like this one - which benefits the perp, IMO. In these circumstances.
The real issue is: are criminal defendants disallowed by law from speaking in court? No, they are not - not exactly. A judge can cause them to face contempt charges (which should happen in cases like this - but we all know that to someone who is facing life in prison, that's not much of a disincentive).
The defense got a good photo op. It was not necessary. If he had still been yelling inside the court, let judge and bailiff deal with it (it's part of Justice, after all).
If people don't think the police actions are viewed askance by many Americans, then I don't know what to say. This particular guy has way more popular support than he should - and as someone whose own life work has been about primitive rebellion and Robin Hood-like attempts to gain public opinion, well, do people really not see how badly this reads to the public? This is the highest profile case of its type. It's going to go on for a long time.
His shouting is going to continue to be a problem. Is he going to be deemed seriously mentally ill because he has his viewpoints? Really? That's not usually how psychiatric diagnosis works. In mental hospitals, we see people like this all day, every day - and using a neck pinch is very, very rare. Why not use the same techniques as we do in mental hospitals? I work in hospitals for the criminally insane and cringed.
OTOH, this is a small town in PA. I live in a big city, with way more attention paid to such incidents in court (at least locally).
He was, according to MSM, shouting at reporters, trying to be heard. This will resonate with many Americans. He knows what he's doing.
IMO