Many leaders throughout history have been seen as Antichrist and it's been because those leaders had things about them that some would see as evil about them. Many of those leaders who have been thought to be Antichrist have come and gone. As a matter of fact John being the only one who uses the term Antichrist says there are many antichrists. But only one final Antichrist.
"Little children, it is the last hour; and as you have heard that the Antichrist is coming, even now many antichrists have come, by which we know that it is the last hour."
1 John 2:19
Some people may not like some things about him, but that doesn't make him The Antichrist.
Knowing scripture, in particular prophecy, The Antichrist cannot appear until the start of the Tribulation depicted as the rider on the white horse.
We are not in the Tribulation.
According to 2 Thessalonians chapter 2, The Antichrist isn't revealed until after the restrainer is removed when the church is Raptured.
Another thing is going by the prophecies of Daniel 7 and Revelation 17, there has to be a one world government of ten kings in place first, and the Antichrist doesn't have power and authority to rule until the one world government gives him that power to rule.
There's no one world government yet and right now I don't see that world leaders are supportive of Trump other than Israel, and Israel isn't part of the coming one world government that gives power to The Antichrist, because it's Israel who will be persecuted by The Antichrist.
There's other reasons why Trump can't be The Antichrist but those alone is enough to prove he can't be.
I think as Christians we don't need to be looking for The Antichrist because we won't be here when he's revealed, but instead keep looking for the coming of Our Lord Jesus to come take us to heaven with Him.