Oh my goodness!  You think you're talking to someone who doesn't know what the Principle of the Double Effect is or how it works.  Trump was a pro-death candidate who has become a pro-death president for the reasons I've already articulated, and to which you still haven't responded.  (To be fair: he's a much worse president than even his opponents anticipated. He pretended, during the campaign, to care about health care; as president, he doesn't even pretend.)
The opinion of the "eminent theologian" regarding John Kerry's status as a Catholic is beyond useless -- it's meaningless. Donald Trump is a hypocrite who pretends to oppose abortion but advocates policies that promote them. To support him on pro-life grounds is to participate in his hypocrisy.