Obama saying we are right wing extremists/terrorists at war with this country is entirely an exercise in semantics. If the words appear on his teleprompter, he will say them.
Was Waco an “act of war”?
Well, no, it's a legal distinction. In the case I mentioned, a Sioux was acquitted because his nation was at war with the USA when he killed the officer.
Insurrection has to meet certain legal standards to be considered such in court.
Which is not to say that the legal system can't be corrupted or ignored, but if that's going on the semantics are pretty an unimportant issue.