You recognize patterns by observing long-term trends, not by overreacting to whatever most outrageous news headline you see right now

Who are you referring to as “the whole world”, specifically? People on Lemmy? Leftists? Your friends IRL?

His salute does not affect your life in any meaningful way unless you let it do so.

Graphene OS - best privacy and security, only for Google Pixel phones

Calyx OS - less secure but supports cheaper phones (Motorola) and eco-friendly phones (Fairphone)

Honorable mentions are LineageOS, /e/ OS, Replicant and iode OS, however their security is much worse than of Calyx/Graphene (no verified boot), so use at your own risk

Yes, they exist, but there is no reason to use them other than tinkering around. Also they have much worse security than Android or iOS. So if you need something private and open source there are a plenty of degoogled Android ROMs.