No, that's not how E2EE works.

Uhh, yeah it is. E2ee (with keys controlled by the users) does "work" by keeping your conversation data encrypted (assuming the encryption isn't cracked and the keys aren't held by attacker). Messages that are not e2ee are not encrypted, so they can be read without breaking the encryption they don't have simply by obtaining a warrant or in some cases simply requesting (by the government).

It literally is "the whole point" of e2ee, that is how it works.

They can't, this is illegal in the majority of first world countries.

They can and do. Have another link.

From the text:

In November, Vice reported that US Special Operations Command had purchased location data collected by a third-party data broker from an Islamic prayer app called Muslim Pro. The app maker later said it would stop selling its users' location data. The same month, the US Department of Homeland Security came under investigation by its inspector general after Buzzfeed reported an internal memo showed it was collecting phone location data without warrants for immigration enforcement.

Life360 only shares aggregated data with 3rd parties, not personal data

I disagree, I think that knowing my every move throughout the day is personal, whether they know my name or not, they know where I sleep, they know where I work, they know where I hang out, that is pretty personal. Not to mention if you know who lives in "House A" and you buy the location data for the area "House A" is in, you have just deanonymized them and can now use it for stalking purposes.

Lol no it doesn't

https://www.businessinsider.com/life360-family-safety-app-sells-user-location-data-report-2021-12?op=1

You sure about that?

Listen you say you do this for a living, but you provide no sources debunking the claims, the DHS isn't even denying they do it, their lawyer is claiming it is legal, they literally admit it, idk what else to tell you man, it looks like they do. From the life 360 TOS:

G. De-Identified Information We may share with third parties, including advertisers and service providers, anonymized, aggregated and/or anonymous data we collect about you and other members, such as de-identified demographic information, de-identified location information, and information about the computer or device from which you access our Services, or the results of hashing your email address.

They literally admit to selling location data, even if it is "de-identified" that still means my home address can be easily figured out, my name isn't the problem, the problem is the "precise location data" they admit to selling. Sorry my dude but it all seems to be the case.