Some of the bugs in these videos aren’t real, so don’t worry about them. And a few of them are so small, you might not be able to see them. It’s always a festive occasion for our cats when any largish insect invades our home. And I’ll never forget Henry jabbering at a moth to come down from the ceiling–which the moth never did, no matter what Henry meowed at him.
You have to admire the bravery of animals. They don’t have access to Wikipedia to let them know that a certain animal is dangerous or not dangerous.