Family issues- advice please

#Pregnancy20Weeks

how would you all handle your parents paying for everything including child support for your brothers child (the only grand child)? I believe they should treat my child the same. My bother never has a job for more than a few months and has been in trouble over and over and they continue to bail him out and buy him new cars while they barely do anything for me. Currently, they are trying to make me believe that he is making $1,000-$2,000 a month on tik tok with only 27k followers.

It just sucks bc they know that we have been trying to pay off debt and get on top of things and they never do anything for us unless we ask. How should I handle this especially making sure my kid is treated the same as their other grand child??