Let's see.  Over 70% of Republicans would rather have Putin as POTUS than Obama.  

As one author has pointed out, "Today’s Russia is a place where government officials are corrupt, life expectancy remains stubbornly low, young soldiers are sent to die in wars their government won’t even acknowledge, opposition politicians and critical journalists are murdered or arrested in alarming numbers, LGBTQ people are subject to state-sanctioned violence, and entire regions are run as the personal fiefdoms of despotic warlords."  

Of course what Trump supporters don't realize is that Trump has for years been trying to curry favor with Russian oligarchs to develop real estate interests in Russia.  Or they don't care, which is even worse.

65% of Trump supporters believe Obama is a secret Muslim.  

So yeah, we can argue about the numbers, but there is no question that many of Trump followers are deplorable.