Am i wrong for being upset

So my mom used to bring men around my sister's and i when we were younger. I never said anything cause i was young and never had a problem with it.

Anyways I'm 18 and today she had a man in her room that she barely met with last night. I told her to get him out and told him to get tf out. My sister was asleep in the living room and honestly i felt like you never know what could happen. And either way, I'm so tired of meeting temporary men that she brings home. I'm not interested in it.

Maybe if she knew him for a while and was finally introducing us but why would I want to meet a one might stand. And he's s complete stranger, what if something happened to my sis while she was asleep in the living room.

I know i could've reacted better but am i wrong for being upset at this?