I think it depends on the angle you take and the things you prioritize. I think you are right PD in terms of how the likely effect politically would be harmful because it would likely give Republicans power at the very moment they could compound their slow erosion of Democratic pillars like gerrymandering and voting rights. And maybe that cost does override a lot of the good you could list off. But I'll add to that anyways because I'm not sure in total we are better off.
If Hillary were president we would:
+ Have a more liberal Supreme Court Justice and far more favorable appointments downstream. Which would be really important long-term. Trump flooding the courts with shitty judges is a real issue. This alone would be the largest mitigator in a lot of the Republicans state level fuckery with voting rights and gerrymandering. It would potentially be huge in areas like campaign finance and gun control and any number of other things a conservative leaning court could harm. Depending on if another Justice retires before Trump's 2020 election, this is something that could have generational consequences.
+ Still be in the Paris Climate Accords and not be eroding our hegemonic standing on the worlds stage in all manner of areas.
+ Not be bleeding out and scaring off talent for absolutely vital government institutions.
+ She wouldn't be running an often completely fucking nuts foreign policy like embargoing Qatar because they didn't give her son in law a loan and she has been getting millions from Saudi Arabia and the UAE for decades so it is putting this weird chaos into middle east alliances. Getting undercover operatives killed because you blurbed classified info to the Russians.
+ Not be gutting the ACA and likely taken marginal steps to improve it.
+ Retain the regulations,
like those the OMB just said are kind of things we shouldn't be getting rid of.
+/- Stayed in the TPP with some notable adjustments, which I think despite flawed was the right decision. We certainly wouldn't be on the precipice of a trade war.
+ Still have Net Neutrality, no crisis for Dreamers/Bush era ICE fuckery, probably at least some minor concern for Puerto Rico, wouldn't have a regressive Justice Department, not likely to have rampant regulatory capture at every level of government set to do untold damage for years to come.