Try this
- Stop adding new arguments and name the single issue that still needs discussion.
- Ask whether to pause, move to a call, or exchange one considered note each. Keep any practical deadline visible and separate.
A worked example
“We’re sending several points at once. The decision is about Friday’s call; could we pause the rest and discuss that tomorrow?”
An invented example to adapt, not a real exchange or a script you have to follow.
Before you leave it here
Do not treat silence during the pause as agreement. When you return, check what each person understood instead of counting unanswered messages.