That's a misleading statement. You are accusing them of not caring about ethics because of the email mishandling incident. First, ethics can't be reduced to just this one single example. Second, you wrongfully assume that they approve or don't care about how she handled her emails. I've met Clinton supports who are highly critical of the particular situation, but are also capable of seeing the larger picture and the fact that Clinton is the more ethical, more capable, and better qualified candidate.
Really, the criticisms of Clinton all revolve around the email gaffe, which I was not happy about, but at this point has become like beating a dead horse. With Trump, on the other hand, a new gaffe occurs every 3 days, and with each new one I wonder how low can he go?
The latest - both Sony and the band Queen issued statements that Trump was not authorized and did not pay for the use of "We Are The Champions." Trivial as that may be, it shows how he plans to win, and how he stays rich - by simply not paying his bills, and doing whatever the hell he wants. Economic rules and regulations are for other countries, like China...who cheat I tells ya, but those rules don't apply to the U.S. because we are the ones who print the money (Trump actually said this about printing more money if we run out).
Hillary made a mistake with handling classified information - that's undisputed. But I refuse to slam her entire ethics system based on this one mistake. Trump shows continuous and blatant disregard for ethics, rules, and norms.