Don’t know if you can go completely Galt, but you can target your spending you have to do. Do things like avoid left leaning companies, Amazon. Do not buy things made in Blue States. That is some of my plans.
Last time Obama won I also went to every blue States web site and ordered as much free crap as they had to offered, i. e. travel brochures, etc. Did the same thing with some left leaning groups just to cost them some money that they will never get back from me.
I also like to give tips in cash, not put them on my CC.
I am considering similar things. I was going to buy a new Mac Mini to replace this Mac which is several years old. I will just keep running the old one. It still works but won’t run the new OS. So what! I’ll just load Linux.
I may get rid of my satellite TV and some other things. I am certainly not going to be spending much money now, except for living expenses.
I seldom buy any restaurant bill on my CC.
If we don't have cash, we don't go. More CC security (never let it out of your sight) than going Galt, but we are definitely cutting spending.