Wrong.
The ROEs would be as follows:
Intruder enters my indoor property.
I draw my weapon and call: "HALT! GET DOWN! HALT! GET DOWN! HALT! GET DOWN!" This takes about five seconds.
At the end of the third "HALT! GET DOWN!" the intruder had best be getting down. If the intruder at any point moves to within arm's reach of my body or my weapon, then I am legally weapons free. If the intruder does not obey my order to halt and get down, I am legally weapons free. The stunts that Scheidler pulled, had they been pulled against a FReeper's home or business, would've gotten Scheidler's head blown off with FReeper approval.
The RICO statutes, however were never designed to apply to political protests, and the fact that some liberal groups were arguing AGAINST their being applied to the pro-life groups underscored this.
Yup, when you're allied with the seditionists looking to shut down as much of America as they can when we go to war, you're in REALLY good company--NOT.
FReeper's don't decide what's legal in this country. Legislatures and courts do that.
What you've described would have you in handcuffs in more than one jurisdiction, especially if your "indoor property" were an open place of business.