You should advise them, and tell them the Quran and sunnah never lead to any bad, but ignorance does, and in fact, having no knowledge of your deen may lead one to be manipulated into becoming that or even worse; it may lead people to believing or acting or saying things that are kufr without them knowing it.

 When I listen or watch Islamic videos, some of my close relatives give a really heart broking comment. that : By listening to such and such you may lead to terrorism and suicide bombing etc. . My family is Muslim but still they’ve this kind of sense and thinking. How to deal and react with them?