Where did, "petition the government" come from? Not from anything I said. Are you just making things up as you go along? Having a problem with reading comprehension?
Don't put words in my mouth. Comprende?
The freedom to assemble is an individual right that is only exercised collectively. Like voting. Or bearing arms.
You're making a very amateur attempt to define some liberties that can only be exercised "collectively" as a way of justifying gun control. If I want to go stand outside the WH with a picket sign I'm free to do it, and so are you. It's not a right that can only be exercised collectively.