First off, "they" is a diverse group of people with different opinions on all three of these topics. Secondly, assuming you're talking about RSS, what people wanted from Google wasn't federation but syndication. Google broke the deal and moved to their own solution, acting like they were never a part of RSS in the first place. They later admit they were wrong and added RSS functionality back. Third, people less want Apple to open messages and more want them to make a version of it that doesn't rely on Apple as a single point of failure. It makes iMessage functionally incomplete as an SMS successor.
And this? People will do whatever they want, across thousands of instances, and eventually people will decide whether they were right or not. The fact that these users even have the freedom to reject Meta outright is worth celebrating.