Why is that? Does Cambridge Analytica-type stuff not happen with Google?
I feel the same way as you but not because I think one is less evil. Rather, it's because Google brings me much more value in its search engine and productivity suite.
It seems like there are a lot more political activists working at Google. It also seems likely that this will backfire in a spectacular way at some point.
The risk here is politically strategic data leaks of individual user data - not Cambridge Analytica-like situations. Could be blackmail material on a few key people, or perhaps a giant data leak on millions of people from the "enemy side".
The point is that sharing data with Google is just as dangerous.
Google absolutely needs to be sued for monopolistic practices. You literally _cannot_ share location data without Google getting it as well. This is beyond ridiculous.
If I have to choose only between Facebook and Google, I'd choose Google to have my data.