It's kinda like other rights such as free speech. Some people don't need/use it. Some specific people might arguably be better off without it. But Everyone needs it; as in, it needs to be available to everyone for it to work.
Internationally, reasonable disagreement on rights seen by some as fundamental is to be expected.
It's also worth pointing out that the right to bear arms, by its origin, should probably be called the "right to revolt". While this is still a controversial issue for governments (governments don't want revolt), it's less controversial for citizens.
Larger arguments are in the space of tradeoffs. What could companies be doing with the engineering resources devoted to GDPR compliance (including compliance with the consumer-frustrating applications of the law, like the cookie walls)? Since the US doesn't have a GDPR compliance law (and companies in the US only comply when they want to do business in the EU), we'll probably see with time whether the inefficiency introduced is worth the tradeoffs in a highly-competitive world of software services.
I'll give you though that the addition of human processes in there present more security risks. I'm doubtful about the addition of safety risks though.
I dunno, this all seems like an extension of the risks we already have. More data, what of it? If an account with sensitive data is compromised, you're most likely fucked regardless of whether the hacker gets a hold of that data.