I think if Texas pulled the trigger on secession, there’d be a few states that joined up with them, I don’t know that it’d be the entire US against just one state. If they seriously went for it, it’d probably be because they thought they had enough strength in numbers.
Unfortunately for them though, Republican-leaning states tend to have lower populations and wouldn’t really be able to provide much help. Florida I guess has a big population too, but not sure how helpful they’d be either with their demographics.
On the plus side though, we could potentially clear out alot of these MAGA idiots in office, assuming we actually started punishing people for insurrection.