This law was passed by the only body with a mandate. Boris has no mandate and no majority and no deal was never voted on (as Gove admitted earlier in the year). The language has become both absurd and dangerous - some MPs are getting the same language in death threats.
The fact is that a significant minority of the country has been wound up into a pseudo-religious frenzy so that everybody who opposes Brexit, or even those who just oppose no-deal, are "traitors", "saboteurs", or "enemies of the people" - there are people on twitter literally calling for them to be killed. It's absurd, this is about a being part of a free trade area that we joined voluntarily. There is no war, so threat from a foreign power, and no traitors.
Our disgrace of a PM is quite deliberately fuelling this. Even his
own family are condemning his tactics.