Uh, there's a matter of degree.
In the US, that'd be protected political speech. The most one could expect is scorn.
The UK may have a lesser speech protection than the US, but still a much broader set of political speech is allowed than in Russia or NK.
The degree gap is usually quick to be bridged, via this common anti-fallacy called "slippery slope". Give it a few more years.
That's kinda a silly argument, given that free speech rights have generally increased in the UK in the last few decades.
Slippery slopes are good to be aware of, and hope to avoid. They aren't inevitable. Things don't progress constantly towards the worst possible state.
https://www.dsl.ac.uk/entry/snd/deid (also deed) https://www.dsl.ac.uk/entry/snd/auld
https://en.wikipedia.org/wiki/Scots_language
Just the accent would be covered by: https://en.wikipedia.org/wiki/Scottish_English
1. Assuming that under a just war theory, a just war can AT MOST be just for one of the warring sides
2. big armies aren't any more likely to fight just wars than small armies
We can conclude that if you're a soldier in a war, there's a better than even chance that it is unjust, and deserters are on average more honorable than soldiers."
Admittedly less catchy.