[cratermoon]

1. The first amendment gives "the right of the people peaceably to assemble, and to petition the Government for a redress of grievances." That's not the right of people to gather together wherever they want, whenever they want. Note the dependent clause. It's saying the people can join organizations like the CPUSA, People For the American Way, American Family Association, or even movements like BLM or antifa, and the government is not permitted to constrain that.

2. "Congress shall make no law respecting an establishment of religion" means the government can't say which religions are OK and which aren't, or that there's an official religion of the US. It says nothing about people being able to go to church on Sunday or temples on Saturday