Why do you choose polyamory?

I want to start off by saying this is not a dig or meant to be negative, I’m really just curious, because polyamory sounds so exhausting to me personally, having to schedule time with and maintain romantic relationships with multiple people sounds like too much work, so I’m genuinely curious why people choose to be polyamorous. I want to understand it tbh

EDIT: some of you guys are making this make sense to me tbh, I think I’m starting to realize that what I THOUGHT polyamory was, is incorrect. I’m glad I posted this, I was scared to at first bc I know the poly community gets a lot of hate and I was afraid my question would be taken negatively and people were going to be rude to me but most of you have been very polite and answered my question in a way that makes sense as to why you would be polyamorous. Thank you.

EDIT2: this is actually very enlightening for me and I’m very glad that I made this post. Thank you to all the nice people who explained their experiences to me. It was actually very eye opening and helped me understand the lifestyle better!