No, you are not comparing to anything, which is totally fine :-)
I'm comparing it to mail.
And if you want a more secure alternative, please go with Signal.
WhatsApp leaks metadata east and west, and if you or any of the people you talk to enable backups all your chats end up in the cloud with a different company.
That said: Neither is mail.
Mail is still useful for a lot of things.
See also tptaceks take:
https://news.ycombinator.com/item?id=22371316