Patreon is a fancy subscription tip jar. The price you see is for a voluntary tip, that gets you the update earlier. If people want to tip that much for a game, ANY game, that's their call. There are other tip options, or wait until the game is free.
Also, different to a DLC, you do not buy the game. The game is never yours. Never. The dev allows you access to play his game.
That goes for most of the games you see here on F95 that have a Patreon.
And please do not call people that made other financial decisions to yours, delusional. It's rude. For the same effort I could call you stupid for not paying that, which I won't, because it would be rude, and you're not stupid.