The real takeaway here is this:
Ali made an inappropriate and hurtful comment to a stranger, and upon being rebuked, apologized several times and was punished accordingly.
Said stranger assigns characteristics to Ali for why he had done so, and upon hearing his apology, refuses to accept, and pushes for his punishment to be more severe. The stranger, who also does not know Ali personally, then excuses away the remorselessness and harshness towards Ali with a statement about it not being the stranger’s responsibility to be nice or help Ali learn to be a better person.
One of the above people made a mistake, genuinely accepted responsibility and apologized as an effort to improve as a person.
The other was offended, rejected responsibility to help the other grow, and continued to dwell on the mistakes of the past, negativity, and self-victimization.