Because youre not communicating very well.

My comment was a sarcastic view on anti vaxxers.

Sarcastically “if you believe vaccines are bad, you will love our ‘anti shedding’ medication”.

You have seemingly gone onto discuss how anti vaxxers wouldnt see it that way. Like, no shit? Obviously? Hence the sarcasm?

You are making zero sense. Do you have the comprehension of a brick?