“The “donors” need to be charged with aiding and abetting a terrorist organization. DOJ, Barr, anyone?....”
I agree. But pursing this case, gathering evidence, finding suspects, and prosecuting is likely to require more investigators, prosecutors and judges than are available. Likely we are looking at dozens of individuals who are buying the equipment in different states and by different means and shipping it in small batches.
Probably the better approach would be to arrest and prosecute the perpetrators on the street. But there appears to be little impetus to do that in the areas where they operate. Which is why the rioters are operating where they are. They have been given license to riot by the local citizen representatives. Frankly, those citizens who are being hurt are getting what they voted for and I think we should let them have it.
I think you left out the fact that half the Department of Justice is corrupt and will drag their feet and impede any investigations. At least that is my opinion.