Let immigrants on limited leave to remain have the right to claim benefits!

My wife I are both disabled, but as I’m a British citizen and she is an immigrant on a limited leave to remain visa she has no rights to claim any benefits. With all the bills rising so sharply and only myself being eligible to claim benefits we are struggling to pay for food and bills plus we have a 9 year old daughter who we can’t claim child allowance for either due to her being on a limited leave to remain visa. It’s getting to the he point already where I didn’t eat for 5 days a couple of weeks ago so my daughter was able to. With the prices of bills due to rise again next month I don’t know what we will do. Thanks for taking the time to read this and you all keep safe.