Probably, almost everyone is biased. The important question for me is whether they make an ideology out of it, that is, concoct a system of ideas for enforcing their biases politically. Age prejudice is overt, almost universal, virulent, and fairly destructive, but I haven’t seen anyone suggest that old people should be exterminated or locked up, so I would not call it an ideology.
That some people have a visceral reaction to a violation of the boundaries set by their prejudices is unfortunate, but as I said it seems to apply to a lot of categories. Many people struggle with the problem. As, of course, does our whole society and many others.
