Yes, the man has flaws but, but who doesn't:
1. He's the only candidate forceful enough to stand up to the increasing PC culture in the west right now, he says what he means and means what he says and won't give a damn if you call him a racist, sexist, classist or xenophobe. If you're tired of the SJW/cultural marxist type of people, there's nobody better than Donald Trump to put them back in their place. The tactic of the SJW is to defame and subvert and it's technically very easy to fight if most people do it: resist the subversion, refuse to cave in.
2. He will deport the illegals and secure the US border. Non-citizens have absolutely no right to just come into a foreign country and just do what they want. Mexico would not tolerate it if it was anybody else doing it, in fact Mexico is one of the hardest countries to gain citizenship in if you're not born there already. But they're not called "racist" or "xenophobes" and it's true, they aren't, they're just standing up for their country.
3. He will actually fight the terrorists with boots on the ground, not just "airstrikes" which never won any war.
4. He will get the economy going away with a better (lower) tax system and cancel deals with China and other countries that are not advantageous and bring jobs back. He will have a strong foreign policy, enemies of the US might not like it (Putin, China etc.) but at least they'll respect and fear the US. Right now under Obama nobody does.