I can’t think of a single way they’ve made my life worse. Messenger makes it easier to connect with friends. Facebook marketplace is a better Craigslist. Facebook itself is fine for sharing photos of life events with family (that’s about all I use it for and I’d prefer higher quality photos but whatever). The Meta VR headsets are great for their price. Back when I had a photography business running ads that could target newly engaged couples was great both for me and those couples that otherwise wouldn’t have discovered a photographer that matched their preferred style and budget.

Seriously - how is my life worse because of them?

You are not forced to use it if that is the case for you.

Don't use it? I doubt most who do agree with you.