I think it's pretty safe to say that the majority of us are here to avoid another corporate takeover of our preferred platforms. It would seem to me to be a tad irresponsible to allow Facebook into our space with open arms, allowing them to hoover up our data. I would love to keep using Lemmy.world, but will happily change instances if need be, and I feel many share that sentiment.
When it comes to Corporates it very much is like the Nazi Bar allegory: you let one Nazi stay because he's beheaving rasonably and not being nasty, and sooner or later the place is going to be full of his friends and turned into a Nazi Bar.
It's the same dynamic only with corporate logos, advertising, hypercommercialism and eventual enshitiffication instead of swasticas, racist messaging and violence.
Certainly in my eperience of it since the 90s, the Internet changed very much this from its early days and spirit as commercial interests from their original foothold almost entirelly subverted it to serve their interests.