My brother is addicted and my parents are enabling?

My brother has been doing drugs for 15yrs.(since 9th grade), he has been in & out of jail, rehab ect.

He is currently living with my parents. (cause the always let him come home)

I am 28yrs old and live with my military husband in a different state than them. So I don't see them often.

I have chosen not to let my 10 yr. old son spend anytime alone with them this summer & have not visited them. I just don't want to be around the drama that comes with visiting.

There is arguments over money and I have to hide my valuables and deal with the the roller-coaster of emotions.

My mother makes me feel awful because of my choice. Like I don't love her.

I am Christian and she says I shouldn't judge. She makes me feel like the bad guy.

Am I the bad guy?

Should I just deal with him to see my family?

Or should I stand my ground and say as long as you enable him by giving him, food , shelter ect... then I am not coming around.

Do I have to make her choose?

Do you know of any scripture that could help me back up what I am doing is what God would want me to?