Can't agree with that Centaurus. By raising the gear, you will immediately set off the gear warning horn (gear not down with flap >15 in a Boeing). You will immediately create mayhem in the flight deck- horn, shouting, fighting control, probably the worst go-around in the western world, a new nickname and a new unemployed pilot! There are ways to try and solve the problem regarding discretion and tact, not taking a sledgehammer to the problem out of the blue at the worst possible time. The Captain will get reprimanded, the copilot will get canned.
The only way is to call: 'We are in an illegal situation, go-around please!.......I have control, go-around, flap15, positive climb, gear up' Do it in the right order, and correctly, or the consequences will be severe. But to just raise the gear? Ouch!