I think it is justifiable, based on Trump's Pro Life record and based on the prospect that Ginsburg will likely be done before the end of his next term, using the principle of double effect, to vote for Trump. When we need to apply double effect, that is the theological equivalent of saying that we'll cast the ballot for Trump while holding our noses.
Now, in terms of double effect, what complicates the reasoning is that we're dealing with POTENTIAL effects, and not certain effects. Could Trump start a campaign exterminating innocent people at the bidding of Israel? Yes, he could. How likely is it to happen? Well, he hasn't done it yet. Could Trump magically change course and appoint some dirtbag to the Supreme Court to replace Ginsburg? Yes. It doesn't seem likely, but who knows what leverage various parties have against him (Jєωιѕн financial leverage, blackmail material ... since Trump is not exactly morally upright)? So we're dealing with speculation and probabilities. Plus, we need to realize that it is very likely that we are all just being played by the true puppet-masters and power brokers (i.e. the Jєωs).
I reluctantly voted for Trump in 2016 based on these considerations. But to try to get us to be enthusiastic about it, that's asking too much, and in fact it's asking more than a good Catholic can do. This doesn't mean one should not actively work to help him get elected. That's OK. But to pretend that this guy is a new Pat Buchanan?