Is it valid to have second thoughts with my bf when he told me that my family is dumb?

My family and I (27F) are having financial problems due to my dad’s sickness. This happened before I met my boyfriend (22M). However, we are managing it in a way that we paying everything on time and solving our problems one at a time. Even if that’s our situation,we are living in survival mode. I have a 5-year plan and this year is the last year. Everything is getting paid and fixed.

My boyfriend treated my family well and met them 3x during our entire relationship. But during the first and third time he met them, he told me that he finds my family dumb and they don’t know what they are doing in life, especially financially. Plus, he just hopes that I won’t get my family’s bad behaviors.

I understand that my family did some actions that he didn’t like but he could’ve told me that he was uncomfortable. I didn’t say anything when he told me these things.

As a person, in any culture, in any nationality, in any gender, should this be a dealbreaker and disrespectful?

Whenever he visited me too, I was the one who spent for both of us. Accommodation, food, transportation. He only spends for the stuff he wants to buy and his transportation going to my area. I am already having financial issues due to my responsibilities at home then I have this subtle responsibility to our relationship just because he is studying and I am already working. He doesn’t even initiate paying or make budgets or making efforts to ease my burden.

Is he being a good partner to me too or is this something I should think about?