Your confirmation bias is off the charts Lando.
If you want to connect Trump to some shadowy group, it'd be a helluva lot easier to tie him to the mob considering he's from NYC and has his name on multiple casino resorts.
What benefit would there be to secretly wanting the kkk's support? They're completely irrelevant in politics and anywhere they're still operating is likely a deep red state anyways. Even as a private citizen, they have nothing to offer.