We tried it with the Scottish legislation and it landed on deaf ears. Some non Scottish members on here even Joking about selling our guns south of the border.
The empathetic attitude of a British citizen should not be underestimated. It's taken the government about 70 years to get us programmed to this level.
Good luck with your efforts. I will sign any online petition you have, but Unfortunately for us north of the wall, it's too late for writing to mp's