If polls are good enough to conclude what you conclude, why have elections?
Of course you are free to draw what ever conclusion you want but beware that the polls are manipulated. After they get the data they extrapolate from a small sample to a larger population. How well this is done is what makes the polls inaccurate.
At issue with the concept you propose is that in actuality, the general election will be decided by whoever opposes Hillary and the hypothetical match up between Trump and Cruz will not play the slightest role.
Well said....I will support whoever keep Hillary out of the Whitehouse!!