I think it goes deeper than that. America never really embraced the dream of a utopian socialist welfare state. The government is weak, constantly being influenced by moneyed interests and chronically underfunded.
Mistakes happen. The mature thing to do is acknowledge them and work to repair the damage. No one needs to completely reverse everything they believe in to do that.
To them, they feel like they have corrected the mistake of the last president.
Based on that number, I'd say not that many regret it at all.
That's closer to 38%.
When I listened to Trump voters on radio interviews and that Oprah interview for 60 minutes, they don't read/hear the same things I hear when I read/hear Trump's words or say we need to give him a chance to do what he promised.
Maybe because Americans have seen socialist welfare states are far from a utopia?
Quite a few have visited Europe though and loved things like the quality, cost and availability of healthcare. If more US citizens could look outward at other countries than inward at divisions of their own making, things like shitty healthcare and drug policies might improve.
Let's not kid ourselves here. Spending a weekend at Fisherman's Warf isn't going to give you much a perspective of living in San Francisco.
And no, I mean they injured themselves and experienced the healthcare system firsthand.