Am I wrong for not wanting my baby to be around my Bd gf because she constantly is disrespectful…

Am I wrong for not wanting my baby to be around my Bd gf because she constantly is disrespectful towards me and also she lets her kid cry for hours n puts her child off so she could go out and take trips n stuff n because I feel like she would do my child something because it's mines and my feelings usually right especially since she has the mind of a child. If she wasn't disrespectful towards me well they both are but if they wasn't disrespectful I wouldn't mind her having my child thats extra help for me when I need it but I feel like because of the things she said and does just makes me not trust her at all. Ppl think it's cuz I want him and I told him to his face that I don't see me being with him because I don't see him wanting a better life for himself and I've helped him with school jobs etc and he thinks drugs n living home doing nothing n being unstable is important so am I wrong for not wanting my child around that I mean if me and her was to sit down and talk like women n hash things out then cool but she just not that mature and he not either and I have no problem with him seeing my baby I just have to be there but as I was saying am I wrong for not wanting to put my child thru that unstable bs with them?