What's at stake in the fight over printing files for guns

100%.

Under the unified national gun laws, manufacturing guns or parts of guns without a manufacturers licensed is illegal. Making access to these plans difficult and with penalties is perfectly inline with that.

I’m not really interested in discussing gun laws any further with you - I’m sure you won’t find it offensive if I say you have form on this topic and it is unlikely to lead anywhere.

My original point, which has gotten lost in this parade, is that the people creating these plans have an impact on the wider world, with a stated goal of exporting the total failure of US gun control to the rest of the world. Anything that can be done to prevent that is a good thing, up to and including crimianalising these items.