Bashed for a Facebook post?

I wrote a Facebook post, about how I have rules for my child, and to follow them as in : if your sick don't touch my child, if you didn't wash your hands before touching my child then don't even THINK about touching my child, don't kiss my child anywhere, and there was tons more, just saying like, back off it's my kid my rules 😒🤷🏼‍♀️.. Well my boyfriends brother commented saying " this is why kids shouldn't have kids ". I'm young, I'm a teen, I'm not under the age, but I am still a teen. I'm not a child, and I flipped when he commented this because it was uncalled for, than goes around & says about not being married , out of high school or financially stable. I am done with HS, and I don't think anyone is really financially stable when a baby comes along, unless your loaded, which obviously I'm not, but I do make good money & work a lot of support my child. Well everyone that's a mom on my FB was pissed & commented how inappropriate it was for him to say that & if he didn't like it to not comment anything at all. Shit like that, well my boyfriend was like it's whatever until he got home & we got on the phone & he said it was all my fault, I shouldn't of commented back, I shouldn't of PROTECTED myself & stood up for myself (PS I was bullied majorly as a child because I was overweight), I should of just ya know, sit back & let him talk shit & let my boyfriend deal with it... So I'm just suppose to be alittle bitch & let other people handle my problems??? HAHA NO. Well his cousin (who has two children) was pissed & everything, saying nasty shit about me (so did his brother) saying I think I know everything, and I'm inappropriate because I put my rules of my child on FB (which I never usually post on FB), it's just all my fault lol. My boyfriend then goes to say " I'm done" a bunch of times & hangs up on me, I call back, same thing happens, & I call back & he eventually stops hanging up & talks to me with attitude (when I didn't do anything?) & we were up till 1, but I was up till 2, it was a mess, and now I don't know if I even want to be with him. He never sticks up for me, never takes my side, even if his family is rude. I'm just tired of it. Advice, & opinions on this topic please. BTW I DELETED FACEBOOK!!!