being part of hardfork 23, and only existing on the Hive chain

It doesn't exist only on the hive blockchain tho. The same exact block exists on steem. Check the block on both steemd (or whichever) and hiveblocks - it's only on the hive blockchain because it was on steem. Every block from steem before the hardfork is on hiveblocks... including the one in question. toke2049 is not a hive witness and cannot produce hive blocks as you are claiming

My father and I still lost our Hive stake

I'm sorry you don't wish to understand further, but this statement does not align with what is on the blockchains. The blockchains demonstrate the opposite - no stake was ever removed from any wallet anywhere as part of Hive hf23

Sorry you got a crappy welcome at Hive. Feel free to hit me up in dm or other if you ever do want to try it again. You will be granted all the assistance I have the power to grant