If as much as 10% of Instagram signs up for threads they’d be as big as twitter. Threads could gobble up a lot of the incoming population of the fediverse and once they have enough people, defederate from everyone else, limiting the available content to non-corpo instances. Defederating from threads is of paramount importance for the well being of the fediverse.
But you could add some truck nuts behind every train car and some bull horns on the front.