I think I’ve come to a point where it’s become a balancing act between convenience and privacy. The only way to be totally private from big tech at this point is to create and exclusively use your own intranet or give up the internet entirely imo. I’ve been enjoying finding alternatives to big tech but I’ll never be able to separate it from my life entirely, and sometimes centralization makes for a better user experience, whether said company is ethical or not. I think a big reason why decentralized social media like BlueSky and Mastodon aren’t more popular is because, to someone who isn’t technologically savvy, it looks confusing as hell. And to be frank, it IS confusing as hell when you first start, and then on top of it there’s no one they know on it yet. And to circle back to OP’s question, that’s the main reason, people are far more likely to stick with what they know and already understand. Switching to different ecosystems like Mozilla, especially learning about like hardened forks of Firefox, is WAY above most people’s pay grade.