"If people are going to complain about stereotyping, it's as likely to be Italian-Americans as gay people"

In this quote, Jason Bateman is suggesting that both Italian-Americans and gay people are frequently the targets of stereotyping and discrimination. He is acknowledging that while lots of people speak out against stereotyping, it is frequently these 2 groups that are most affected by it. Bateman is highlighting the reality that both Italian-Americans and gay people face comparable challenges and has a hard time when it comes to being stereotyped and evaluated based on their identity. By using the expression "as likely," he is stressing that both groups are equally vulnerable to being stereotyped and that it is very important to recognize and address this problem for both neighborhoods.