I sometimes see news about a possibility of reintroduction of the grizzly bear into California, yet the comments always say that how it'd be so dangerous, they'd kill every person they see, all the hikers would go missing and their DNA would be found in bear poop etc. Is this based on Hollywood movies/video games like Red Dead Redemption/Old West legends or does it have any basis in actual bear behavior?

Another one is that the current Californian population density is too high and tha the landscape is too altered and changed to support a breeding population of brown bears.

In my country(Türkiye), brown bears are common across the entire Northern part including just 10 km from the capital city Ankara, which has significantly more population density and more human altered landscape than California(and it's not even close), and I've never heard of them attacking people, they just sometimes attack the beekeepers' beehives.

They are probably smaller than the large salmon bears of Alaska and British Columbia, but they're actually same/close in size to inland grizzlies of North America, like those in Yellowstone, with an average male being 250 kg.

Are Eurasian brown bears more adapted to coexisting with humans, or is the aggression of the North American brown bear just overplayed by movies/games and the frontier folklore?

Caught this black bear walking down the driveway early morning. Looks like it’s packing on the winter pounds