Family who are not supportive? Should I cut them out of my life? ?

Hello,

I had issues with sister in-law & her kids. 

The rest of my brother in-laws and another sister in-law, I didn't have much of a problem with. I wanted to confide in them, because of the deep depression their sister and their niece's did to me and think that it is ok to treat people like that. 

But when I tried to confide in my other Sister in-law, she said she didn't want to get involved. 

I tried to confide in in my brother in-law, but again I was shut down & told "I dont want to get involved, it's not my business". 

ALL I wanted was a listening ear or some family support or "Are you OK?" and I did not get nothing. I didn't ask them to get involved, just to listen to me vent. 

My husband is disappointed/gutted, because he thought that the one only brother who he expected to be more supportive, wasn't.

I got on well with my Father in-law and rang him when I felt down alot, he always listened but sadly he died from an illness.

So I feel alone when it comes to not having anybody to turn to. My Husband is always there, but he does alot for me & understands me. But he is upset that his own family don't support us emotionally, even when I mentioned feeling suicidal in the past. 

We want to cut them out of our life. His sister disrespected him too in a text and called me a "stupid bi**h" just because I retaliated to her child who is older than me & is 30, who sent me a message first that I am a "stupid dumbf**k!". 

5 stars for best answer! What's is your advice?