STOP WHATEVER IT IS THAT YOU'RE DOING and fill out the form:
https://consumercomplaints.fcc.gov/hc/en-us/articles/16136257875348-Data-Caps-Experience-Form
Tell the FCC how much data caps suck and how--if anything--it should be illegal for companies like Comcast to exempt their own services from the data caps. If their IPTV-based "cable" service is streaming 4k video 24/7 that should be included in a customer's data usage otherwise it's an abuse of a monopoly over the user's connection!
Even if they didn't ban caps outright the caps would disappear overnight if companies were forced to include their own services in customers total data usage figures (because 4k streaming TV services would eat up 99% of the average user's cap in like three days LOL).
I don't think Google cares if the Fediverse succeeds or not. All they care about is that it can be indexed and people will be able to show Google ads on their instances.
Google doesn't have a Reddit equivalent or even any other social network competitor (anymore; they killed them all). They explicitly chose to exit that entire concept of products.
The only reason XMPP mattered to Google at the time was they were trying to compete with Apple for messaging on mobile devices. XMPP meant that Android devices using Google Hangouts/Chat/Gmail could chat with users on other platforms/services while Apple's chat app could only do SMS.
I guess what I'm saying is that Google is mostly irrelevant from the perspective of the Fediverse other than the fact that it can index and maybe give priority to discussions of certain products/topics like it does with Reddit currently.