In theory, this is true. But the effect of reads on SSD endurance is orders of magnitude smaller than the effect of writes. The reads required for a rebuild aren't going to trigger an endurance-related failure unless the drive was already within one full drive write of failing.
Not directly, but you will cause some writing to happen internally to the drive if a read disturb is encountered. When the SSD has trouble reading back data due to a read disturb or similar data degradation, it'll recover it using the error correcting codes and then write a fresh copy.
