Just because Cruz and Rubio are correct on the issues does not mean they are competent executives. That is what the presidency is - an executive leadership position. Their resume is piss poor compared to Trumps.
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So that means you will vote Bloomberg if/when he runs? He has many very successful businesses, he has accumulated wealth that is magnitudes greater than Trump so he is obviously a better businessman, he has the executive experience you seek as both an executive in the private sector and in the public sector (as a Republican).
Based on your own criteria he is the perfect candidate.
For conservatives, however, he is as left as you can get and his worldview disqualifies him from consideration. The same rule applies to Trump.
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Trump is competent and a conservative hence your point is moot.