They're definitely not promotions or advertisement. Propaganda is successful, so in that respect they are reaching their goal.
I think more people would see it if it were about something else. They can tell the difference.
The problem with propaganda promotion is that coercion, ultimatums censorship, and using media to one side the vax effort loses some people's trust.
Here are the differences between advertisement and promotion
Difference Between Advertisement and Propaganda | Difference Between
Advertisement
Advertisement purpose is to promote product and services.
The goal is to make money. Marketing.
Propaganda
Propaganda is primarily used for political reasons. It attempts to influence people's ideas, beliefs, emotions, and behaviors so that can be coerced to fight a cause (war/pandemic/etc).
When people's emotions and beliefs are changed to a cause they can't see what's wrong or because it uses fallacies people fall into it. Especially when there are expert claims involved.
The is some techniques involved
https://motioncue.com/types-of-propaganda-techniques-in-advertising/
It's a good website if you (all) are interested in reading it.
Advertisement doesn't do these things. It's strictly marketing.
Doctors do not try to get people to use their services, take their meds, and follow their treatments by these methods.
They respect the patients views because the latter views and symptoms are important in the diagnoses. The health of the person is primary to the doctors opinions.
That's not the case with this.
What happens is (picked from above link)
I didn't name them all.
This has NOTHING to do with/it's NOT about
1. Efficiency of the vax
2. Validity of stats
3.downplaying the pandemic and deaths.
4. Convincing people not to te the vaccine
Those opinions are all comes from provaxers regardless who says otherwise. Censorship is usually the result.
Advertisements don't censor. That's why there are product reviews. They Want to hear about their products ineffectiveness to improve it.
Propaganda doesn't have that. They suppress information. You can see it just by googling misinformation.
It DOES have consequences like division, hate, protests.
No one thinks together because propaganda is messing with people's emotions to get the to turn against each other.
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It's counterproductive. Sadly there's no solution because of the politics.
It doesn't work for a lot of people hence the mandates.
Whether you agree or not is your thing but US history has a track record for this stuff.
Pointing it out isn't a problem if people put aside their emotions.