Ok then go research how many companies in silicon valley give their employees Gmail. All the companies I've been worked provided Gmail only because there is really not a good open source option. And Google accounts is a huge monopoly that obviously sounds bad enough to hurt your feelings. But this is the reality. Google is a valley of shit and most of us want to move on from it.
Criticizing Google doesn't "hurt my feeling". I've moved away from Gmail and other Google services (not all) a few years ago because I disagreed with their options. But that doesn't mean I have to agree with nonsensical claims such as Google having a monopoly on email.
Maybe they do on Silicon Valley, but I'm sure you realize that's a pretty insignificant subset of email users.