I would guess the chance of finding any other summer work right now, let alone another technical internship, is below 50%. The way you handle this is to take the internship and be happy it didn't get cancelled entirely.
Instacart has been trying to add several hundred thousand new contract workers ("full service shoppers" as Instacart calls them).
https://techcrunch.com/2020/04/10/instacarts-hiring-spree-co...
I've heard Fin-tech firms have been cutting lots of fat in the last 4 weeks, although I've also seen some large banks still hiring contractors.