Your fears my be confirmed , but I also could project a scenario where Trump wins as few as 4 states, and not large ones electorally at that.
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Trump will not be running against an unpopular Hillary. In fact I doubt if Trump could beat Mickey Mouse on the ballot.
Folks who voted for Trump or a third party last time only because they thought Hillary was a shoe-in aren’t as likely to make that mistake again.
Trump has a political record this time — and its crazy — so he won’t be viewed as some magical hope.
Democratic governors now control a few key battleground states more than last time so that voter suppression will not be as strong a factor.
Social media will be on the lookout for foreign interference.
Trump is a glutton for overexposure, which in time becomes political poison.
Four years of the nation’s leading comics ripping Trump will have taken its toll on independent voters and so will a few highly regarded Republican and former Republican moderates politicians bashing him as well as an army of former administration folks Trump has stabed in the back.
To sum up, the last time Trump had hate, Hillary, ignorance of his terrible business ability and no political record working for him. This time all he has is the negative aspect (hate) of the White trible impulse on his side. All persons of goodwill are eager to give him the boot.