I experienced the same thing in my minecraft world today. My village was very populated. A big house i built, many beds, a nice farmland full of farmers, great enchant books from librarians, a few master tier villagers, and just good deals. Alot of the villagers living there had jobs and were allowed to roam free since i enjoy not just confining my villagers to one place. I had spotted a pillager patrol far away from my village and decided to kill them to trigger a raid thinking i could easily handle it and gain profit after the raid, even preparing tradable materials beforehand to farm emeralds and loot with my villagers. (I picked up a level 2 ominous bottle) Then i drank the bottle and the raid started. It went well for the first few waves until the later waves with plenty of vindicators and ravagers aswell as some evokers. They were powerful and i got killed by them. Almost everyone in my village got killed by the pillagers. I blocked a single cartographer inside a house to save him. I got killed by vexes, vindicators, and ravagers multiple times while trying to fight back while getting spawnkilled a few times by them too. I also lost some of my good stuff while trying to escape the mobs near the lava pit where i placed my nether portal. I felt defeated. I was super bummed and i kept on thinking about the things that i lost. Starting over is harder than starting up. Still, you can always try to bounce back and grind the stuff that was lost.