The JW faith attracts people who are inherently unhappy. -Hence the shockingly cavalier attitude towards death.
Nothing will change vis-à-vis the JW faith until that underlying unhappiness is remedied.
I don't mean to sound flippant here and apologize if it sounds that way.
This isn't easy. It took me nearly forty years, so I'm not exactly what you would call a genius when it comes to this stuff (What man is?)
My wife threw her JW literature away when her life outside the "Kingdom Hall" became more pleasant and more rewarding than her life inside it.