It's difficult because the constitutions in both America and Canada guarantee some degree of personal liberty, including the right to peaceful assembly. These rights are more ingrained in our respective cultures than in most other cultures worldwide, though obviously to a greater degree in the US than in Canada, and the public places a great deal of value on those rights and its a constant fight to keep big government types from infringing on them.
I don't know how it works in the US, but there is a clause in the Canadian Charter or Rights and Freedoms that allows parts of the constitution to be suspended if it is in some way rationally related to a pressing public need. Government legislation that breaks the constitution regularly gets challenged and struck down in court when the government is unable to show a rational, logical connection between the legislation and a pressing public need. In this way, the Charter of Rights and Freedoms acts as a way for the judicial branch to keep the legislative and executive branches of the Canadian government and provincial governments in check. There are a wave of supreme court cases coming up later this summer challenging various measures put in place over the course of the pandemic, including one in my province which only allows residents of the island I live on the enter the island I live on, violating section 6 of the Canadian Charter of Rights and Freedoms which guarantees freedom of movement within Canada.
I don't know what particular country you live in, but in this part of the world the government has to tread carefully with regards to suspending personal liberties. I'd personally rather have those protections in place than suspend personal liberty because the health care system isn't competent enough to control who goes in and out of old folks homes where the vast majority of deaths have taken place in Canada.
I don't live in the US and honestly don't give a flying fuck about the US police or George Floyd, so don't take this as support for the protests or riots.