You can take anyone's public key and send him/her bitcoins. In the future, like 2100, you understand that technology is advancing. Those years I believe that brute forcing a private key will not be something impossible. Do you think that bitcoin will be spoiled by human in the future?
Bitcoin has been created more than 10 years ago, have you found anyone had brute forced private keys? I am not sure if it's possible even with quantum computer system. But I believe if it happened then there will be something to prevent it. I don't believe it would be spoiled by humans since. Don't feel that bitcoin or crypto industry will be spoiled very easily since there is big community for it.