Hello, great to see more like minded people on steemit, there are many homeschooling families here so I'm sure you will be made to feel welcome.
As for the bitnation app, Its seems to be very new and has a few bugs, I'm sure they'll sort it out. This is very early days but I believe it had huge potential in the near future.
I love the mission because I can very easily picture us as being one of the many families you stick up for... mainly because I am perpetually paranoid about agressive people/institutions who disagree. Therefore your proposed solution for other like-minded families is so exciting. We look forward to seeing where it all goes 😊