The fact that one of the two major political parties is actually discussing this is unbelievable but not unexpected...
Before the Civil War broke out the population in many Southern States wanted to secede.....in this modern day version of secession, it would not be that way....they’re large portions of CA, OR, and WA that would want no part of that.....
The military might need to be used, but in a way of an invasion or occupation....
Cut off those three states, blockade the ports, cut off any movement in/out of those states by land and basically starve them out.....it would turn to anarchy in a couple of days and the people out there would basically overthrow the state governments...
Where are you going to find the navy to blockade those ports? The Navy is mostly based in California and east coast blue states. It would fall mostly into the hands of the secessionists. Mexico and Canada would sympathize with the secessionists so blocking off the land border would be problematic. It is rather the inland core of red states who likely would become isolated and blockaded.
Texas GOP Flirts With Secession
"During an hour-long fight in the middle of the Friday platform vote, secession advocates tried to force back into the platform language that party leaders had dropped the previous night. The federal government has impaired our right of local self-government, the proposal claimed, setting up the potential for a statewide vote so that Texas could reassert its right to return to its original status as an independent nation."