People have spare pc’s or laptops they can sacrifice as a SearxNG instance. I too have a homelab & i have not paid a single penny to have a hobby SearxNG instance on my old hackbook pro that I share with friends.
I feel like, the internet is more than just paying your way for services. It’s about creating and sharing services and decentralization. If Kagi takes off then we have another evil Google that wants to profit at the cost of users, but its name is Kagi. It might be an impractical answer, and it does take some work to create a better internet. End of philosophical rant about the true spirit of the internet