... yet your argument is that they are blameless in the poor performance that followed because of historical factors?
No, they're not blameless, they did all of those things. What is more worrying is a structure wherein actions as sweeping and dangerous as these are possible.
If we were to treat the US as a business (as the President would want, apparently), poor leadership is the reason why we're going bankrupt both economically and socially. His actions are akin to cutting the QA department across your various software teams because 'their duties are redundant and can just be done by the developers instead', then encountering a crippling bug that could've been fixed by having QA at inception.
The countries that are coping with this aren't doing so by putting everyone in great, well funded hospitals. They are avoiding people getting sick through combination of border control, cheap & quick medical testing and infectious disease specialists in key positions.