This attitude has proliferated into more than electronics, too, sadly.
I even hear this attitude in the cycling community: Don’t repair a bearing! Toss it! Buy a new cartridge! Don’t refinish a brake pad, buy a new one! Don’t adjust your cables, buy a new set!
Or even “Get a new bike, this one has a bent derailleur!”
Thankfully, we locally have a “fixit” club/shop for bikes now. And a Really Really Free Market, where there’s a couple of people with “Something Broke? Bring it here, and I’ll try to fix it” “stands”.