Being that you crashed their demonstration, it sounds like you were fortunate that they had enough self restraint to allow you interfere without “harming” you.
Maybe you’d feel differently if you saw one of your own lose it and harm a “pro-abort pervert” carrying a bull horn through your protest. If that wouldn’t be enough to make you understand, maybe a larger, more equal and better armed clash over the same demonstration space would do the trick.
The “Christian” who refused to stay in his area did not have his freedom of speech violated any more than if the had been black he would have had his freedom to be black violated. He simply disrespected the law that keeps opposition protests separated and allows little girls a voice without arming themselves for probable battle first.
Opposition forces are kept apart for the same reason that the families of victims are not allowed to bring their weapons into court. The first is no more of a violation of the first amendment than the second is of the second. Both stem from a recognition that circumstances for violence are greatly enhanced so we empower the police with the authority to impose the minimal amount of restraint to keep order without any practical violation of anyone’s rights.
But some people are really just looking for trouble while pretending and hiding behind their freedom of speech. They probably don’t get how easy they are to spot. Like all criminals, they probably think they’re smarter than everyone else. If they don’t learn, they have to be arrested.
No, they crashed our demonstration in the times I was thinking of. I think we only crashed them once. We stood on the sidelines and shouted and waved placards at them. But nothing happened.