Parrot

Someone who repeats anything they heard mindlessly without thinking it through.

The term, usually used as an insult, is used especially to describe conspiracy theorists and MAGA Republicans, who often repeat what other people say.

Can't wait to see my parrot uncle at Thanksgiving.

Discouraged Dater

Someone who is currently not dating, who wants to date, but has not attempted to start dating for a long time because they gave up, believe nobody is suitable, or is mentally exhausted from unsuccessful attempts.

Person 1: Hey man, you haven't dated in a while, why don't you go out and find someone.
Person 2: Can't, finding someone is a lost cause
Person 1: Ah, I get it, you're a discouraged dater