Maybe a hot take but if you want to convince people to use vim show them box select and yank and replace. It's just extremely efficient and no other editor(ide) I've used really has it by default.

Or ask them to open a 100 mega byte log file in eclipse. Even Advance IDEs simply just die. Cannot count the number of times smart diffing with vimdiff and box cutting has helped me diagnose problems that were extremely subtle. Without vim I simply couldn't do that type of diagnostics

Sames true if emac or other text editors too