No, i do not think chumros make kids go off the derech in of themselves,
however looking down on anybody who dosnt keep your chumros,
or saying that your chumros are halacha when really it is very reasonable to say that they arnt,
or not honestly showing all the sides of an issue and only showing the things that back your position
can lead to a kid being severly disillusioned and possibley going off the derech.