People worry about liberties being taken away; such as during emergencies. The pandemic, climate change, wildfires, even a hurricane. Sometimes people need to give up a bit of liberty for safety. This can be a worrisome slippery slope, but it's needed at times.
Back in the 1960s, there was the military draft. We were at war, the Vietnam War. Men turning 18 years of age were subject to being drafted into the military, whether they liked it or not. Alternatives were seeking exemptions that could be hard to get, fleeing to Canada or going to prison. My older brother had to face those choices before he did finally get conscientious objector status.
I would guess that, compared to those days, the slippery slope, we seem to always be on, is not as bad today. Not as bad as it was back then; at least here in USA. I know, that's a matter of opinion, of course.
It's good to be questioning and somewhat vigilant, but people forget, we had a draft back then. Just getting a shot offered for free to prevent serious illness seems mild by comparison. I do realize some other people have different perspectives than mine. They might think the shot is a form of technological mind control.
The draft was a big deal back then. We had "subliminal advertising" back then as well; speaking of mind control. Television was pretty new. New technology was scary back then also.
Look what the automobile has done to society. Worry about the slippery slope is not new.
As for the fate of democracy worldwide, in Mainland China and so forth, that's another story.
Here in USA life goes on. We need to find that balance to keep society functioning while not turning into a tyranny. A balance between the extremes. Extremes that could cause us to loose it.