All of people included in that study were on SSRI/SNRI drugs for a lot longer than just a day or two. What you are referring to is this lady, notice in bold:
• A 27-year-old female who described having a very high libido since puberty, developed a dramatic loss of libido, reduced genital and nipple sensitivity, and anorgasmia within three days of using fluoxetine.
After discontinuing the drug seven months later
There is not proof of anyone having permanent brain damage from taking these drugs, let alone from only taking them for a day or two.
This is in no way justification for your claims.