> I won't be arrested and thrown into a cell for the rest of my life if I say something incorrect by mistake when entering the US
For the rest of your life? Source please?
You can be put temporarily into a cell for plenty of stuff but that's temporary. A fine is pretty permanent and when it can be millions, well that's probably the end of your business too.
> There's nothing that says IRS won't prosecute you if someone buys you a soda and you don't declare it as income.
Isn't it simply paying back what you should have + interest? (with some threshold)
Paying taxes is already part of the cost of running a business too (and that's a pretty low cost for a startup, versus having an actual trained DPO).
> Or that you won't be prosecuted by someone in the US if your blog has a copyrighted image and you don't receive a DMCA request that was sent to you.
Which is exactly why you try not to put copyrighted image over your website. Most of the times PII isn't something you can just avoid for a business.
> All fines can be administratively and judicially appealed.
Any appeal represents a cost. A cost that you can't always support until the end.
At the end, it's all about the cost of the risk... that's it. GDPR seems a pretty high cost.
