Not all disagreement is simultaneously incessant, belittling, and disruptive.
Some want to ridicule Q discussion off the site, that is evident. The ridicule began with the advent of very lengthy and quite frankly sensationalized daily posts. That has since been scaled back and channelled more narrowly which should help. Beyond that ignore the trolling or seek to control access via something akin to a caucus. You’re not going to ever experience open threads on FR with no disagreement.