My mom is trying to set me up with a guy I friendzoned

So I (19F) had a male friend (19M) confess to me like a year ago and I made it very clear back then that I only see him as a friend and can't imagine a romantic relationship with him. We agreed to stay friends even though things have been kinda awkward ever since. We're not close enough to hang out outside of school, but he is close friends with my little brother (18M) and they voice chat with each other like every day, so my little brother found out about us not too long ago. Anyways, my brother told my mom that I friend zoned this friend and because I've never dated anyone before, she's now trying to convince me that I should give him a chance. But I'm just not interested. Don't I get a say in this?
He drive me home from school occasionally but he specified that he does it because we are friends and I'm not the only person he drives around. Today he drove me home again and picked up my little brother to hang out. While he was waiting for my brother, my mom came home and greeted him with "oh, there's my future son in law"... Luckily I was already in my room by then, but just hearing this made me so uncomfortable. I'll try to talk to her later, but I already know that she won't listen to a thing I say. She never considers my feelings and it sucks.
If only my brother wasn't friends with him, I could just avoid all of this. But their friendship is none of my business.
It's just that I tried my best to set boundaries between us to stay friends but my mom is just messing things up even more. What if he gains confidence from this? I wouldn't want to turn him down another time.
TL;DR: A guy whose confession I rejected is friends with my little brother and my mom is trying to set us up now despite me making it very clear that I'm not interested
Edit: I learned that the word "friendzone" has a more negative meaning than I thought. It doesn't really apply in this case then. (English obviously isn't my first language)


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