Quelling Assimilation

The perennial dilemma facing any religious community, or persuasion, is how to get the next generation to maintain the same level of observance, and belief as those who came before them. Every parent likewise encounters that struggle. 

That seems to me to be the challenge that's posed in the Parsha of Eikev:  

Take thought this day that it was not your children, who neither experienced nor witnessed the lesson of Hashem your God —God’s majesty, mighty hand, and outstretched arm; the signs and the deeds that [God] performed in Egypt against Pharaoh king of Egypt and all his land; what [God] did to Egypt’s army, its horses and chariots; how Hashem rolled back upon them the waters of the Sea of Reeds when they were pursuing you, thus destroying them once and for all; what [God] did for you in the wilderness before you arrived in this place; and what [God] did to Dathan and Abiram, sons of Eliab son of Reuben, when the earth opened her mouth and swallowed them, along with their households, their tents, and every living thing in their train, from amidst all Israel—

but that it was you who saw with your own eyes all the marvelous deeds that Hashem performed.

This poses quite a conundrum. What do you do when your children are not one of heart with you? Like the famous retort, "So send my leftovers to Africa," children often don't feel the same struggle, and in this case, feeling of devotion that their parents did. 

For better or worse, the Torah doesn't offer a silver, or magical bullet. 

It simply states:

Keep, therefore, all the Instruction that I enjoin upon you today, so that you may have the strength to enter and take possession of the land that you are about to cross into and possess,

and that you may long endure upon the soil that Hashem swore to your fathers to assign to them and to their heirs, a land flowing with milk and honey.

 That's the only answer the Torah gives. You have to do your best to lead a Torah-driven life. As for your children, you are not the steward for their religiosity. A promise has been made to your forefathers, but over and beyond that, the perennial dilemma exists, and all you have to do to maintain your grasp of the land is follow in God's ways; everything else, is beyond your control.