not have them blocked by ISPs or other intermediaries
...
people must be free to say obnoxious things.
...
The only limit should be incitement of violence and those determinations should be made by a court
Agreed (pending last one)
...
Agreed
...
Agreed there is a line, and there needs to be a way to determine that line
One of the issues with a court is speed. I am thinking about things like the idiot with the ice pick in Montreal, or the more recent New Zealand massacre. I don't know if they fall within your "incitement of violence" line, but certainly everything should be done as quickly as possible to eliminate their spread.
The other issue with a court is the fact that the Internet is international in scope.