No such thing as thorn proof tubes, if a thorn is long enough to get thru the tire it will puncture the tube, it might just last an extra half mile with a thicker tube. Honestly, Gatorskin tires aren’t really goathead proof either, seen plenty of them puncture during group rides.

I live in goathead territory, when I moved here one bike was tubed, one tubeless. I remember getting three flats in six miles on my tubed bike, never made it to my group ride start. (Each was a separate thorn, first the front tire, then the back, then the front again in a different spot). Hung that bike up and rode the tubeless bike exclusively. Eventually bought another bike set up tubeless. The tubed bike is relegated to my trainer now. I looked at converting it to tubeless, but it would require new rims, it’s an older frame and max tire width is only 25mm, so I decided it wasn’t worth it.

if you stick with tubes, carry 2 spares, some self adhesive patches and tweezers, along with a few CO2s and a backup pump. Know where the nearest bike shops are and their hours in case you need to buy more tubes during a ride.