AITA for kicking my BIL out of my living room permanently?

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The original was posted on /r/AmItheAsshole by /u/Time_Pin_1985 on 2023-06-27 12:56:33+00:00.

My SIL (husband's sister- 29f) and her husband (34m) rent out our basement currently. They have the entire basement to themselves, with the exception of my laundry area. They pay $450 a month to be here and 9/10 they eat their meals with us as well (they chip in very little to food cost however). They ran in to hard times and needed somewhere to go 2 months ago and we opened our doors to them, despite me being ready to "pop". I had my daughter 2 weeks ago.

Since they moved in, my SIL will sleep all day (she works overnight shifts) and my BIL will come upstairs to my living room around 5-6am and take over the entire space. He will put TV on and then sit there with his laptop playing video games and he will not leave that living room at all until 8-9pm. My SIL even brings his food to him in the living room. The only time he gets up is to go to the bathroom or get himself coffee. Now, he's very much so a 50's style southern boy. This man does not lift a finger at all and has never so much as boiled water because that's a woman's job. He doesn't pull that shit with me but he does when it comes to my SIL (who works all day when he is unemployed due to a "back injury").

Anyways, I breastfeed my daughter and I refuse to be limited on my own space so I will absolutely go in to the living room and nurse my child. I make sure I'm not exposed. Damn near every time I go to nurse, he will be like "ion wanna see dat shit" (think southern hillbilly accent) or when my husband gets home he will say "she tryna whip her boobies out in my face 'gain". And I'm honestly so fed up and disgusted with him that I snapped and told him he's not welcome in my living room at all anymore and he can sit his stupid ass down in the area his wife pays for. SIL is trying to get me to change his mind because they don't have a TV down there and the plug in doesn't reach his laptop and sitting on the bed all day hurts his back but I refuse. I don't care how much discomfort it causes him. He grosses me out and his face makes me want to vomit and he needs to stay away from me completely. My husband is on my side, per usual. But it's causing issues for my SIL because her husband's just a dick in general. AITA?