The bar for British is arresting old ladies saying nasty things online, so practically their bar is already gone.
No, the older women are being arrested for protesting in the streets in support of an organisation our government has deemed to be aligned with terrorism. It’s entirely silly but not as silly as your example.
No, the older women are being arrested for protesting in the streets against an organisation that is committing terrorism, because the government has deemed that actual terrorism is not terrorism and opposing terrorism is the real terrorism, and a bunch of nonsensical things like that.
I think you consuming too much right wing American media.
Not that countries don't prosicute laws for crimes outsiden of their border, but the bar for what they will is higher.