a.) You start a business in California and plan to do business that involves EU customers. If you plan on making actaul money you'll hire a lawyer for a reasonably small number of hours to incorporate, ensure you have trademarks covered, get your EULA in order, vet your corporate structure, etc. GDPR is just another thing to add to the hopper--it probably adds an hour or two to the whole process since legal procedures are pretty template driven. Most of the cost will be the lawyer briefing you on what to look out for. (Based on my admittedly quick reading of GDPR summaries.)
b.) There's already a net decreasing trend in startups in the US, but it predates the GDPR by many years. [0] If you are looking for culprits in the legal system you are far more likely to find them in US laws (or lack of them) than anything from Europe.
Taking the EU perspective, well, I've run a small tech business in France and GDPR seems like noise level compared to the other regulations you need to deal with there. (Hiring and firing being the biggest but there are others.)
[0] https://www.nytimes.com/2017/09/20/business/economy/startup-...
Edit: add source
Nobody cares.
Name one way your life was ever negatively impacted, in a concrete way and not just in your head, by companies using your data to create value in the form of targeted ads and such to keep websites free. I'm waiting.
But I can't think of any internet regulation that's ever harmed me. Which ones are you talking about?
Edit: I can think of a small number of regulations (much less than one per year) that cause problems, but they still don't meet the personal concrete harm threshold you've proposed.
We can go back and forth about the best way to deal with this, but it's crazy to think that this systemic gobbling up of personal data doesn't have real consequences.
Facebook famously did an emotion manipulation experiment on 500k randomly selected users.
There's a trial now alleging that Facebook used profile data to discriminate against older programmers in job postings: https://news.ycombinator.com/item?id=17178565
Many types of abuses are subtle and remain unknown for the victims.
Burden of proof lies on the one making the claim.
>Facebook famously did an emotion manipulation experiment on 500k randomly selected users.
I don't really find that abusive or ethically troubling.
>There's a trial now alleging that Facebook used profile data to discriminate against older programmers in job postings:
Maybe this age discrimination, which was already illegal on its own, wouldn't have been possible to commit if the data didn't exist in the first place. That doesn't mean it's the tool's fault or that the tool should be illegal.
I didn’t make a claim, you did, then flipped it around and made one for me. ;)