Legally speaking of course you are simply wrong.
The proof that these guys hve the legal authority to make these stay at home orders is the FACT that NOT ONE lawsuit has been filed and won where it was alleged that public health and governors do not hve the legal authority to take such actions.
Keep in mind, their legal authority is totally separate from whether it was a good idea, or an idea that even worked. We Are speaking solely on the legal authority. Your statement that there is no law is simply wrong. There is a number of laws aNd every state has them. And if you actually read the governors orders they cite those laws for any moron to read and see for themselves tht a criminal penalty attaches to violating those orders. Most of the orders specifically state that the violation is a crime.
Feel free to make the argument that stay at home orders dont work. But the courts have already stated over and over again that the orders are valid. The only times the orders are not valid is when they discriminate for no good reason, or the purpose is unnecessary or too extreme. But those are different arguments than whether the government can impose health code restrictions.
Do you believe your governor, mayor, or president can singly rule that it is a misdemeanor or felony if you are healthy and don’t wear a mask when there is no law passed?
Almost no cases are moving forward at this time. Courts have been shut down through this and cases are not moving forward, nearly everywhere. A divorce of someone I know from March has been backburnered until past August at this point, with the likelihood it could happen in December, according to the court.
No law covers this and your pleading otherwise has no merit and you’ve offered no proof.
Here is some work going against executive orders from governors:
North Carolina’s lieutenant governor says he will sue Gov. Roy Cooper over his coronavirus executive orders
https://abc17news.com/politics/national-politics/2020/06/25/north-carolinas-lieutenant-governor-says-he-will-sue-gov-roy-cooper-over-his-coronavirus-executive-orders/
Pennsylvania businesses take fight against governor’s coronavirus executive order to Supreme Court
https://www.foxnews.com/politics/pennsylvania-businesses-coronavirus-executive-order-supreme-court-tom-wolf
CHURCHES AND INDIVIDUALS SUE GOV. BROWN, ARGUING EXECUTIVE ORDERS ARE UNCONSTITUTIONAL
https://www.kdrv.com/content/news/Churches-and-individuals-sue-Gov-Brown-arguing-Stay-home-save-lives-executive-orderis-unconstitutional-570457001.html
Judge Blocks Pritzker From Enforcing Coronavirus Executive Order
https://patch.com/illinois/across-il/judge-blocks-pritzker-enforcing-coronavirus-executive-order