I agree, which is why I won't be supporting Trump or Clinton.
Although I am morally on the side of Cruz, I do not believe we are living in a world in which we can ignore the practical realities.
I think my first moral obligation is to my family and specifically my children.
I think Hillary will not only implement Nazi-style abuses targeting her political enemies, (meaning us) I think she will precipitate an economic collapse, (more socialist economic policies) if not a major (perhaps World) war. (Weakness emboldens our enemies.)
I don't like Trump, and I think that not only did Cruz deserve the nomination, he would have been our best possible choice of all the other candidates, (intellectually and ideologically) he just could not overcome Trump's street-fighting ability. (Trump fights dirty.)
I regard the selection of Trump as a disaster, but the ascension of Hillary will be an extinction level event so far as conservatives are concerned.
Again, my first moral duty is to my children.