My dad's in his 60's, has a mental illness and lives on his own 200 miles away from me. He has some family support nearby from my aunt and uncle, and I visit when I can (although not recently due to Covid). I know that he's lonely though and I make an effort to talk to him every weekend for an hour or two especially since Covid.
Anyway, he has a really daft sense of humour. Like really "dad jokes". But also sometimes sexist and cringey. He's recently got WhatsApp, which is a nightmare as he has been sending me loads of memes and youtube videos. They are meant to be funny but I just don't find them funny... they're either slapstick (like a dog falling off a couch)... or sexist humour like a man complaining about his wife.... or just jokes about alcohol etc. The kind of stuff you might see on greetings cards.
So when he first started doing this I would just respond with "lol" or something, even though I didn't find them funny. The problem is if I do that, as soon as he sees my response he will send 5 more! They're endless.
How would you deal with this situation? I know I could confront him but I just worry that he will feel rejected (he gets very depressed and often feels like he has not been a good father for various reasons, even though he has, it's part of his illness). I don't know whether to just stop responding? AIBU?