Silence isn't an option, for us... but also for them
A Trump voter can have as many Trumpgrets as they want, but until they actively stand against Trump, against the Breitbart/InfoWars media circus, against the Mercers, against the Nazis of the "alt-right", against the "it's better to gouge your eyes out than be 'bossed around' by a liberal, minority, etc." mindset being pushed by right wing media, and against the right wing cliches such as "political correctness", then they are not allies.
The "election" in 2016 already did enough damage to our country by normalizing the Adam Lanza and Dylann Roof Wannabes who say universal healthcare is unreasonable but think that The Purge and Punishment Park are instructional videos, so let's not be a party to normalizing them further by enabling the people who refuse to stand up against them.
Silence and neutrality is not an ally's response to the insanity of Nazis in the US or "Yeah we're being shot at, but at least it's a white person shooting at us, and not some Syrian refugee!" Period.
