Okay, so who are you (and this article) trying to convince?
How many times do I have to ask this question
If you believe this to be true, then fine.
If you think you are going to change anyone's votes by it, then IMO think again.
First, Trump's support among Republicans is undiminished. Don't count those hold-out's who didn't vote for him in 2016, they are no loss.
Second, his support has grown among Black and Hispanic Americans. Poll: Trump approval rises among black, hispanic voters amid convention | TheHill
Third, we already know that many people, especially among Independent's, are afraid to voice their political views, Poll: 62% of Americans Say They Have Political Views They’re Afraid to Share | Cato Institute
I have no idea who will win come Nov. 2020, but I will vote for Trump's re-election.
Time will tell if this will be a repeat of 2016...with the MSM and opponent's using every resource to "predict" he will win...only to find he snatches victory again.