Did I explain something wrong? My sibling said they'd rather struggle than experience Jannah

Assalamu alaikum, I'm a revert and the only Muslim in my family. I was chatting with them about Islam the other day. I've been meaning to change my middle name for personal reasons, and I decided to go with Yusuf because the story of Prophet Yusuf (peace be upon him) really touches my heart-it's full of lessons I want to live by. When a sibling asked why Yusuf, I started sharing the story and some basics about Islam since my family isn't very familiar with it. Another sibling jumped in, saying religion isn't for them because there's so much hardship people go through. I tried to explain that hardship actually has a purpose, and with every difficulty comes ease. Sometimes struggles teach us important things, and whatever we face in this world won't compare to the bliss of Jannah. I mentioned a hadith where it's said that if you took the most miserable person and dipped them into Jannah (I accidentally said 'tortured' but quickly corrected myself to mean a life full of suffering) and asked if they ever faced any hardship, they'd say no [Sahih Muslim 2807]. Jannah is a place of endless peace and joy, and the difficulties of this dunya are temporary and insignificant in comparison. But my sibling said they'd rather struggle and don't want complete peace or happiness-they seemed really upset by what I said. Did I mess up somehow? Why would they react like that?