How would the argument change if the second premise said "make a MAMMAL unsuitable to be a pet?"

Would the entire argument become stronger because of the specificity, or would it become weaker on the account of it doesn't include all animals.

Alternatively, would there be no change at all?

For question #3, what makes it different from question #1

I answered it as such:

It's not the case that most people like ice cream not(P‑m→I)

So why wouldn't #3 be:

It's not the case that most pasta is made from wheat not(P‑m→W)

does it have to do with the words 'like' and 'made from' ?

confused