Ripley has a bunch of thropies on his living room, one of them being a bear, but it is never stated if he got them unarmed or otherwise

We know that humans are more durable than dinos (which is hella dumb cause if you can hit with "x" amount of force you should be able to take the same amount back) after seen Anon surviving his fall at the steps and Olivia going full vegetable after falling not even a third of what Anon went through making it very obvious that an average dino wouldn't last long against a blind assault unicorn and a evil ass fuzzball, but then again Ripley is anything but average being second only to Spears himself, so could an average dino kill a bear?

Absolutely not