I mean the 2 countries are extremely different in history, culture, etc.
Hence the comparison.
France has had 4 or 5 revolutions in the last 300 years.
(Still to be proven.)
The closest thing the UK has had is the Irish republic stuff.
You're narrowly excluding the ECW and the Glorious Revolution and Jacobin uprisings by that particular bracketing, I note.
In
strictly the last three-hundred years (and ignoring the various Irish instances, as you dismissed them) someone
thought there was revolution, leading to the Peterloo Massacre. There was the Scottish Radical War. Riots arise from the Second Reform Bill, which (amongst other things) made Bristol a separatist state, more or less, for three days. The Chartists arguably ultimately succeeded in political revolution that spates of violence to it. The Suffragettes? The Jarrow Crusade, varioys General Strikes and Miners' Strikes? The Pentrich Rising was instigated by a government plant (not the first or last) and who can forget the Luddites.
If you want to use the Irish instances as benchmarks for successful British revolution/separatism, consider the span of similar trouble in India (up to Partition, perhaps as far back as the Mutiny), with some other colonial happenings (e.g. Second Maroon War) definitely approaching that level of open rebellion as scaled to province. I'm told that something happened between 1765 and 1783 in some insignificant set of colonies that we're never heard of since.
Do you want to count
small-scale rebellions? At least as important as those French riots you listed, to those involved.
If you want to look at radical changes to the British Isles, alone, and don't feel like including the Industrial Revolution and Information Revolutions as too amorphous and not (directly/overtly) changing the political scene, consider the "thank you, but goodbye (for now)" to Churchill's wartime government and voting in of the Universal Healthcare in 1945 (and huge rollbacks and re-revolution by the rich under Thatcherism).
There's a rich history to British insurrection, but maybe the difference is partly down to JFK's famous quote: "Those who make peaceful revolution impossible will make violent revolution inevitable."