1.

What does Alex say about the fascination of bullfighting?

He says that understanding the fascination of bullfighting is difficult for non-Spaniards.

2.

Why isn't Jack so easy to convince?

Because bullfighting is a “blood sport” and he does not like them.

3.

Has Jack ever seen a bullfight?

No, he has never seen a bullfight.

4.

What does Jack consider his right?

He considers that having an opinion is still his right.