The right to have a firearm in your home is totally different than carrying a firearm into a public place,
As I see it

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Policemen in your community are not paid
"mercs".
To say otherwise
is propaganda, pure and simple.
You sound like a propagandist
Propaganda is communication that is primarily used to influence an audience and further an agenda, which may not be objective and may be selectively presenting facts to encourage a particular synthesis ... Wikipedia
The police are trained public defenders exercising their public duties paid for by community tax dollars whose duties include enforcing the rule of law, nothing less, nothing more
In my view of things

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Finally we have something we both can agree on.

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Again, You sound like a propagandist, clearly not an American

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I think you are totally wrong.
Rather than argue this in the abstract, let me give you some examples.
First of all, the hundreds of cases of innocent Blacks murdered by police should be enough to convince you.
There are so many, like Tamir Rice, Breonna Taylor, Daunte Wright, Andre Hill, Manuel Ellis, Brooks, Prude, George Floyde, Atatiana Jefferson, etc.
Between 2014 and 2020, police in the United States killed at least 7,680 people. Twenty-five percent of those killed were Black, although Black Americans make up just 13 percent of the population. In most cases, little or no action was taken against the officers involved. Here are some of the...
interactive.aljazeera.com
Should police ever impose a no-knock-warrant?
Only in the case of a hostage.
The busting down the door of a private home, in order to obtain drug evidence, is totally and completely illegal.
If they do not already have sufficient evidence to convict, then they should not able to even get a warrant.
And by the castle doctrine, a home is supposed to be of superior jurisdiction to the owner, than to police.
So why do police illegal bust down doors and murder innocent people?
All because of the War on Drugs, which is inherently illegal.
The source of legal authority in a democratic republic only comes from the delegated authority to defend the rights of others.
Drug laws do not defend the rights of anyone, so are completely and totally illegal.
Police should know that and refuse to carry out illegal acts like that.
They then they would not get paid, so they do it anyway, murdering thousands and kidnapping millions, in the process.
I personally experience police corruption all the time.
If I wear nice clothes and drive the nice car to work, police treat me very well.
But when in the middle of a home remodel, taking debris to the dump in the old pickup, police are entirely different.
Many times now they have pointed guns at me, which is totally illegal.
A gun can easily go off by accident, if one trips, sneezes, etc. so it is a felony, conduct regardless of life, to ever point a gun at someone who does not pose any sort of threat.
Just switch any of the shooting by police for a normal person instead of a cop, and they would go to jail.
Like the Jacob Blake shooting in Kenosha, where they put 7 bullets in the back of a Black person who was just checking on his kids in the back seat.
He clearly was no threat and could not legally have guns pointed at him, much less shot.
If anyone else had done that, they would be in jail for life.
But the cops were not even arrested.
Obviously the police are being recruited from the military, where the rules of engagement are totally inappropriate for police, and the trainers these days are military as well. So we effectively are in a war zone, and the police have decided we are the enemy. That is not tolerable, and police either have to change, be arrested, or killed.