The mom / wife beef didn't make sense
Eddie Murphy's character didn't want his daughter to date a white man. This was a serious issue and Jonah Hill's character's reaction to it and the confrontation at the end made sense.
But the Julia Louis-Dreyfus and Lauren London beef?
How exactly was this comparable?
Yes she was tone deaf and cringey, but Lauren's reaction was unwarranted.
They tried to make JLD's and Murphy's character equally bad, but it was simply not. Her character was basically autistic, which I'm sure wasn't the writer's intention, but that's what happens when they try to make Lauren's and Jonah's issues with the in-laws comparable.