I'm sure there's one reason above all else that they don't want it contained: old people vote, they're knowledgeable voters, and they chose POTUS over Clinton by 8% in 2016:
https://www.pewresearch.org/fact-tank/2016/11/09/behind-trumps-victory-divisions-by-race-gender-education/
How much more will they choose him given his proven track record? This just goes to show how evil these people are.
But I'm sure it's all under control. It won't appear that way, but it is.