So you want a view where everyone with a controversial view to loose their job? And who decides what a controversial view is, or if it is or is not controversial enough to lose their job?
In the end, I don't think one's views outside of the workplace should necessarily relate to their work performance. Eich was close to a public figure, that doesn't make the witch-hunt any better.
I don't want a world where "everyone with a controversial view" loses their job, but neither do I want one where no view is controversial enough to incur consequences.
If I had a coworker who habitually made racist statements, for example, and I liked my job, I'd want them to lose their job. That kind of work environment would be quite unpleasant for me and probably a lot of other people.
To generalize, I have no problem saying I want to live in a world where employers feel comfortable firing racists who openly air those kind of distasteful remarks. (I didn't say, "I think all racists should be unemployed," mind you.)
What constitutes "controversial enough to merit consequences" and what those consequences would be (i.e. the world as we now have it), that, I think, there'll never be a single set of rules. It'll always be up to contemporary society, the employer, etc.
In the end, I don't think one's views outside of the workplace should necessarily relate to their work performance. Eich was close to a public figure, that doesn't make the witch-hunt any better.