You can't touch a right therefore rights don't exist.
Nah, this is midwit logic.
You also can't touch love or words or beauty or ideas or instincts. Yet they are vital parts of the human experience.
It is true that 'rights' are not self-enforcing, so in that sense he is not completely wrong. However, there are certain conventions that when adopted reciprocally, make human societies parsemonious and prosperous. From an evolutionary perspective, it's not difficult to understand why there would be a competitive advantage to develop an innate respect and affinity for those conventions, so in that sense 'rights' very much do exist every bit as much as 'love' or 'beauty'.