Is this child abuse?

So my mom gave away our 2 year old cat away to her friend and my 12 year old sister started bawling.

We have 3 cats all 2 years old and one mom cat. My sister was searching for the cat everywhere all while my dad knew where the cat was but acted dumb. Then my mom came back home and told her they gave the cat to the friend my sister screamed and cried and begged them to return the cat but my mom said “no, that cat is happy as hell in her new home”.

My dad said shut up and stop crying over a stupid cat and my mom made fun of the sound of her crying and told her to shut the fuck up and that she’ll get rid of all of them soon. The cat mom came down the stairs and my dad said “this is all your fault for bringing that cat into the world”.

Idk I feel bad for my sister. She was the closest one with the cat and the cat adored her, she looked everywhere for her to feed her and cuddle her my mom could’ve at least told her.

Can this cause trauma? I’m trying my best to comfort her but I can’t help but feel like this is abuse what my parents are doing.

My moms reason for giving away the cat was because the mom cat gave birth to another kitten (1) and she didn’t want a crowded house with 5 cats and she wanted to give her dear friend a gift.