Both programs are a terrible invasion of privacy installed in all of their computers, but the backlash against Microsoft seems much larger than the one against Apple.
Additionally, you can and should encrypt your data which Apple allows to do using FileVault.
Again, the encryption key never even reaches Apple‘s servers except if you use the iCloud Keychain. And even if you do and you store your key there, Apple wouldn’t have the key for your iCloud Keychain and thus couldn’t do anything with that data.
Microsoft is not breaking new ground in killing your privacy. Customers already don't know or don't care that $bigcorp is watching everything you do and choose to give them all their data.