1. The broader network probably doesn't fit the legal definition, but specific nodes in the network almost certainly do. We should pursue those.
2. I can think of at least 2 more not yet designated: Islah (Yemen) & Hizb al-Watan (Libya)
4. 100%correct. We sanction based on violence, not evil ideas. This is why we should name MB a hate group.
6. We don't know what the sentiment would be. Conjecture.
8. Assuming that a blanket designation is not feasible for reasons of bureaucracy and legal criteria, this is moot. But concerns noted.
In summary: let the bureaucracy look into the smaller groups and see what pans out. And declare the MB to be a hate group. Because they are.