You’re well within your right to buy a Tesla, modify it to the moon and back, and use it independently however you want. I hate Tesla as a company and I’m a strong supporter of these rights, but I stop at claiming that businesses have an obligation to continue supporting a product with unknown arbitrary modifications.
To the extent that a product is designed to only operate efficiently (or at all) with continued access to manufacturer services, it’s probably a bad idea to disqualify yourself from that access. But there are only two ways to solve that, either A) disallow the sale of products that rely on first-party services, or B) requiring manufacturers to uphold their end of the services contract while you do god-knows-what with your end of it (the product). Neither of these is the clear moral high ground that hacker types seem to think they achieve in this argument.
To the extent that a product is designed to only operate efficiently (or at all) with continued access to manufacturer services, it’s probably a bad idea to disqualify yourself from that access. But there are only two ways to solve that, either A) disallow the sale of products that rely on first-party services, or B) requiring manufacturers to uphold their end of the services contract while you do god-knows-what with your end of it (the product). Neither of these is the clear moral high ground that hacker types seem to think they achieve in this argument.