If that is your whole point, you didn’t approach it right as you can see with all the downvotes.
You seemingly argued against RAID which was invented for data availability and performance. While it’s true, that RAID alone is no backup solution, having just a single drive is more hassle when it fails, so running multiple drives in a RAID allows for better handling despite the higher probability of having to swap a drive.
Another point you did not consider: larger drives have more sectors that can fail. While I have no data for this, a 32 TB drive is unlikely to have the same rate of failure as a 16 TB one - the larger drive will be more likely to fail (not as likely as one of two drives failing though).
If that is your whole point, you didn’t approach it right as you can see with all the downvotes.
You seemingly argued against RAID which was invented for data availability and performance. While it’s true, that RAID alone is no backup solution, having just a single drive is more hassle when it fails, so running multiple drives in a RAID allows for better handling despite the higher probability of having to swap a drive.
Another point you did not consider: larger drives have more sectors that can fail. While I have no data for this, a 32 TB drive is unlikely to have the same rate of failure as a 16 TB one - the larger drive will be more likely to fail (not as likely as one of two drives failing though).