You extrapolated "I will just be pickier about who i sell it to" into an argument about regulations. If your contention is that sentiment obstructs progress, it seems totally fair to argue that the opposite is also true. Accusing someone of "whataboutism" isn't doing much to move the conversation forward.

They made a snarky single sentence comment. There is no argument about any thing else.

I have a quote from the OP, but address matters from the entire comment.

You are arguing about two sentences.

> Whataboutism

"The polar-opposite behavior is a bigger problem" is not "whataboutism", the relation is direct and practical.

> Your post history seems like you exist to be an example in a Wikipedia article.

Thinly-veiled personal insult, check.