I expect a decent president showing memory issues responded to with concern, not mockery outside of said mockery being done by assholes. We mock Putin because he's a warmonger who invaded his neighbors because he's still butthurt than the Soviet Union fell apart. And here's a funny idea: Maybe mocking others for things outside their control like old age is a bad thing that we should stop normalizing, like how associating gay people with pedophilia was the norm.