I can't accept these terms and I don't understand why people do!

I seriously can not accept GG's terms.

When you upload, submit, store, send or receive content to or through our Services, you give Google (and those we work with) a worldwide license to use, host, store, reproduce, modify, create derivative works (such as those resulting from translations, adaptations or other changes we make so that your content works better with our Services), communicate, publish, publicly perform, publicly display and distribute such content. The rights you grant in this license are for the limited purpose of operating, promoting, and improving our Services, and to develop new ones. This license continues even if you stop using our Services

And the damn thing continues:

...Our automated systems analyze your content (including emails)...

Extract from Google Suite Terms of Service