Seems to me both Trump and Obama are sinners like the rest of us.
Trump has done more outright to help traditionally Christian causes and Christians worldwide. I think a lot of that has to do with the influence of Pence.

Both Trump and Obama have made shows of Christianity. Both have stood in and in front of churches.
The right, Christian, and otherwise did in fact attack Obama steadily. Often denying his professed faith outright by regularly asserting that he was really a Muslim. Those that didn't go there, disparaged his relation to Rev Wright and his Church as you have. While giving Trump's LACK of any Church going and um...unchristian behavior past and present a wave of the hand.

It would be one thing is the main theme from Christian right about Obama had been something like.
He seems to be a theologically liberal Christian I pray he comes around. And add that many of his political policies are opposed to Christian ideals and Christian freedoms. So I can not support him politically.
And then even, Honestly admit that, Trump's personal life seems FAR from Christian in many ways, we'll pray for him. His political policies to closer to what Christianity promotes and is more supportive of religious freedom.
But it doesn't come across that way to anyone with no dog in the fight.
It looks like they wailed and moaned at Obama for things real and imagined (some prayed for his death) while literally ignoring all of Trump's problems for supposed political gain.

John the baptist was killed by King Herod for pointing out that it was sinful for him to marry his brothers wife. (Herod wasn't appointed to be pastor either BTW) I suspect neither John or Jesus would downplay Obama's or Trump's sins personal or political.

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Hope is the dream of the waking man.
Aristotle

For there is hope of a tree, if it be cut down, that it will sprout again, and that the tender branch thereof will not cease.
Job 14:6-8

Why so touchy about Obama's allegiance to Rev Wright and Black Liberation theology? Are you signing up for GD America? When the good Reverend revealed himself to be a Marxist more interested in redistribution than salvation, Obama jettisoned his longtime mentor as an impediment to attaining political power.

You tell me if a President deliberately edited out the reference to our Creator in the DOI guarantee of our rights, endorses the Federal government's destruction of the Little Sisters of the Poor because they will not violate their Christian beliefs in favor of the Obamacare mandate, who flips on homosexual marriage, denies DC parents the choice of sending their children to religious schools and supports abortion as the supreme right, somehow is immune from question.

Again, Trump is far from the Christian ideal but he openly defends Christianity and supports the church in the face of continuing assaults from the Left.

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If Democrats were confident their nominee actually received more than 80 million votes they wouldn't have more troops occupying Washington, DC than Lincoln had defending the city during the Civil War. Not Joe Biden, Kim Jung Biden.