It looks like there's no way to convince big blockers of their mistake. What can be done at this point? Will they actually hardfork and find out for themselves?

Looks like no amount of arguments will ever change their mind. They want to live in 2010 when bitcoin was cheap as fuck because no one used it. They have lost their mind, they don't get it. We are witnessing something ridiculous unfolding. If the JarzikCoin code actually forks backed by the mining cartel it's time to get some popcorn.