Certainly makes Amazon a less desirable employer for me.
Or just set up companies such you are employed by company in CA.
Obvious issues I can see are "don't put that in writing, pull the offer and don't say why" or "no, it's not adhesion at all, we just don't like any of these specific changes, you're welcome to try again!"
Not sure what you mean by getting in writing. It is what it is.
- While these types of contracts are not illegal per se, there exists a very real possibility for unconscionability. In addition, in the event of an ambiguity, such ambiguity will be resolved contra proferentem against the party drafting the contract language.