Here in Germany I used to work for a company that swore off Amazon and other US cloud vendors because of things like this: the relationships between them and the government are too tight. They didn’t want German user data being compromised. It could have been FUD to do things on premises or what not but it seemed to make sense at the time and now with this...
There is an AWS Region in Germany. Your data will stay in Germany unless you specifically decide to move it elsewhere.
AWS also provide you with the tools to encrypt everything and if done correctly means that Amazon no matter how "evil" they are cannot decrypt the data. Not only that, there is such a huge separation in access and rigour around governance that there is no way anyone within Amazon can simply login and see your data even if unencrypted.
Every single case of data being leaked from AWS is because the people working for the company that manage the data literally checked a box to make the contents public. Contrast this to "on-prem" where physical security can get compromised or the vendors of the physical hardware/software leave gaping holes or maintenance backdoors that get exploited.
Honestly these types of views are no more grounded in reality that flat earth conspiracy type views.