Fetching details from the dictionary...
extreme logic; extreme argument; unreserved argument
極論を言えば全員が反対だろう。
Put in extreme terms, everyone would be against it.
極論に走らず冷静に議論すべきだ。
We should discuss calmly without resorting to extreme arguments.
彼は極論で場の空気を凍らせた。
He froze the atmosphere with his extreme argument.