Oh, definitely not based on this guy alone. I've been on the internet for a long time, and I've observed how american ageism appears to be on a level much higher than I see from other people. the us media is ovsessed about generations, and people follow along. It looks like people take every survey result out there and try to blame others for things based on their age. There are people protesting against voting rights for citizens above certain age. I've seen people getting so insecure about doing things because they feel too old, like doing hobbies, starting a career, enrolling in an university. I've seen things like people at 27 insecure about doing a Master's degree, because of their age. This among several other things, like cinema, jobs, etc.
I don't disagree about the stuff you mentioned. That said, with the internet it's easy to find people saying crazy shit about any subject, so it's good to be careful about inferring views of a bunch of people from a small sample.
Wait until I tell you about this amazing invention called "public transit". It was all the rage back in the early 20th century, and it might be making a comeback.
I wasn't even saying ageism is not a problem, just making a joke about how a screenshot of some random asshole isn't representative.
That said, I don't think it's ageism to be concerned about whether two guys who are 81 and 77 should be put in the most powerful and stressful job in the world.
You don't think the average person has naturally reduced cognitive ability at 70+? I've never researched it I just assumed it declined in general just like eyesight, hearing, response time etc. I'm 40 and all those things have begun declining for me. I'm wiser but definitely not quicker.