Family not respecting boundaries

Lillian

What am I supposed to do?? I usually would never bring my family issues to strangers but I'm literally at a loss. I was supposed to see my family today because my older brother is in town but would only be there for less than an hour before he heads on his way so it would've been pointless to waste the gas to drive an hour just to say hi and then an hour back home. So I decided not to go. When I told my mother this, she informed me that she was bummed cuz she wanted to see my son but she has RSV!!! And my dad had it the week before. I asked her when she had planned on informing me of it because my baby had it last year at 4 months old and it was the scariest thing I had been through. And I know my parents like to kiss all over him usually. So I told her I was glad I didn't come because she wasn't even gonna tell me they were sick. Then it kinda blew up and turned into a fight because I unloaded the last years worth of things that bothered me that they did because I hate confrontation and therefore I keep my mouth shut and get stepped all over. But I finally put my foot down because they would give my infant son soda and candy before he was even 1 and the house isn't baby proofed and he even almost got kidnapped in their care because they weren't watching him. They couldn't even handle him as an infant and now he's 16 months and gets into everything. I told them I couldn't trust them and reassured them several times that I wasn't trying to be mean, I just was finally standing up for my baby and they blew it way out of proportion and started coming at me and saying awful hurtful things and playing victim. And when I didn't apologize they started acting as if I had shot someone. Continued to be very rude and acting as if they had done nothing wrong and that everything I do is awful and how devastated they are. There's more to the story but I'm literally shaking right now because I have major anxiety about these types of things and I literally wanna cry. I just don't know what else to do. They're making it worse by continuing to be condescending and nasty to me.