Says it all really.
Even if you support him, can we all simply acknowledge that Trump is unpopular and it's not surprising?
He became president despite losing the popular vote by a greater amount than anyone whose managed entering the Oval Office. He ran a campaign that was proudly divisive against "anyone who isn't us". He was chronically vulgar, insulting, and obnoxious in a manner greater than literally every other major party candidate in history combined--supporters considered it "telling it like it is". Whatsmore, we can all agree that his REPEATED statements about pussygrabbing, women "being dangerous by working out of the home", liking to intrude on beauty show dressing rooms, etc. etc. etc., proved even to his supporters that, although they preferred him to Clinton, he's still fundamentally a scumbag personally.
Most importantly, he has not said one thing or taken a single action since being elected to change that course and actually unify the country. His supporters saying that candidate Trump would develop gravitas and his non-ideological nature to build bridges have bupkis to show for that theory, and it ain't about to happen.
The only people trying to claim he's not unpopular are those that always supported him.