Please, calm down. Firstly, Satmar is not Neturei Karta. And not every Neturei Karta member goes to meet terrorists, either.
But mainly, you call it indoctrination but they call it Chinuch. We all pass our ideas to our children. If you don’t like my ideas that doesn’t make it indoctrination.
You won’t change them. They are following the great Satmar Rebbe ZYA and they won’t stop anytime soon. But, on your part, don’t overdo it either.