I'm very disturbed by the idea that birthright citizenship can be stripped - and in fact there is a 1967 Supreme Court decision (Afroyim v. Rusk: https://caselaw.findlaw.com/us-supreme-court/387/253.html) that hoplds that under the 14th Amendment citizenship cannot be taken from you (though you can elect to renounce it).
Naturalized citizenship is a little trickier. I suspect most naturalization laws have a get-out clause in case of fraud that's discovered later or in case the naturalized person becomes a danger in some way.
But if a country can simply strip the citizenship of people the government of the day disagrees with, there are huge dangers for dissenters of all stripes. The 1967 decision came shortly after a time in which left-wing Americans saw the State Department refuse them passports, some of them people we know and admire on the folk scene. So yes, I find the whole idea extremely disturbing.
Of course, at one time countries handled this by simply shipping people to an empty continent somewhere. We're fresh out of those...