This was recognized long before there was a medical/industrial complex. Vaccines eventually eliminated many horrible maladies that killed millions of people a year. Now that we have opened our borders to peoples from countries where these illnesses were never controlled with vaccination programs they are making a comeback here in the USA.
The outcome from a comeback of deadly communicable diseases on a population that no longer trusts vaccines is very predictable. A lot of people are going to be getting very sick and dying from preventable illnesses.
Covid is no longer any more deadly than the flu, 95% of the population here have some form of immunity, and the vaccines in some cases have been shown to have negative efficacy. The more that government agencies promote failed Covid vaccines, the more that they prevent people from getting vaccines that actually have value.
One analogy is banks.
In many countries in the third world the banks failed and people lost all their money.
Then when those folks move to countries where banks are more sound they still refuse to put their money in banks.
Once you have gotten burned you get super cautious.