Funny

You're not an idiot, but you're sure limiting the scope of your concerns. Many would die on both sides. But "Many" has a lot of room for nuance inside it.

Let's take out the big arms and leave it at small arms and infantry assistance technology. The actual, newer than the mothballs police departments get gifted.

Do you actually figure that the remainder of the military which doesn't turn traitor is gonna be outnumbered by the seceding traitors in this civil war scenario?

Did you also account for the metric fuckton of able bodied people who would enlist during an open war to stomp out Fascism at home in the open like that? The largest regressive ideology spewing for the entire history of the Union state?

The far right isn't even remotely sized large enough to outsize the non-crazies in the military and those who would run to go join for the resources to defend their country.

It would absolutely lead to much blood shed on both sides. But the losses on New Texas? would at minimum be a whole ass order of magnitude higher. At minimum.

I really would rather not have to pick up arms, and I hope most would too.

But rest assured, the US military would shock and awe the fuck out of Texas to dissuade any in the other 49 from fucking around and finding out, if legit Civil War broke out at Texas' provocation.