In this hypothetical, you are not a criminal; nor are you around criminals. An informant gave the police bad information. Stop stalling. Tell us readers what you would do.
(I said they were coming through the door. With a no-knock, they aren't waiting for you to open the door--neither will the criminals.) In this hypothetical, they weren't the police; they were "serious" criminals that just yelled "POLICE!". So you and your family are now at their mercy, because you chose to lay down your weapon, and not to fight.
If you don't have a reasonable proposal to replace no-knock warrants, you are wasting all of our time.
That's not my job. We should stop it because many innocent people are dying, replacement or not. Your thinking: "We can't stop polluting rivers until we find a reasonable alternative to disposing of toxic waste." "We can't stop police brutality until we find a reasonable alternative letting out cop frustrations." "We can't stop unsafe work conditions until we find a reasonable alternative of getting the job done just as quickly."
A very small number considering the size of the country. We are going to need many more times the number of no-knock warrants to clean up the inner city.
Then you end with with hostages being taken or something like that. There are good reasons judges, liberal and conservative, sign off on these warrants.