Good instructions are being provided, and nicely detailed. Once you know what does work--tried and true using materials suited to the purpose--no reason to consider what might work instead. Clear Gorilla glue might work, but you can see why it might not
https://www.gorillatough.com/product/cl ... illa-glue/ Not sure if you have removed the tip top. Doing so is easy enough with instructions a search here will turn up. If it is secure and removing it won't let you see anything more clearly for the break repair, you could just leave it in place.
Just as well it's broken off completely. Now make an extra close inspection that there are no splits running up or down. Any ragged splinters at the break point can be gently dressed away since they will contribute nothing to the strength of the repair. You have to assess any splits and make sure the repair exceeds their length up or down the blank. If there are several and you use a wire stent, then you might want to wrap the entire repair area, clear or color matching the rod or tiptop wrap. If either broken part looks split, weakened, then I would sacrifice appearance for external strength against further splitting and use a simple sleeve as described above. It could be installed to abut the tip top, and chamfered at its lower end with a small decorative wrap transitioned to the blank.
The trick with these repairs is judging the strength and continuity of the joint. A substantially stronger or weaker/ stiffer or softer joint just creates another break point. Choose your method (stent or sleeve) accordingly. But please use epoxy.