Unless they back track on his statements convincingly, I too am shopping for alternatives. Very sad, this is the one service I didn't expect to be caught up in US politics like this.
Are you also changing your phone manufacturer, bank, plumber, hair stylist too? Or don’t you bother checking their affiliations as closely?
Also, email is the most critical service most of us use, it is very important to know your email provider isn't supportive of a political regime, specially when that regime is using data collection for retribution, deportations, firings,etc..