You shouldn't listen and believe anyone solely on the basis of their person. Many "scientists" or "experts" that you might believe in have financial ties and liabilities / political liabilities that prevent them from utilizing their expertise to full capacity. The world, money, and politics naturally suppress truth. The government told you the vaccines would stop the spread, limit deaths, and bring us back to "normal". Have you seen the numbers? Have you seen the quarantine camps? Upwards of 50% of COVID cases in some countries are among the vaccinated. Not mentioning vaccine injuries / deaths which the "experts" have told us are rare, but are bleeding more and more into each person's living reality.

Vaccine evasion is happening, and it doesn't matter whether it's delta or omicron. Would Pfizer pay for a study that proves their vaccines are worthless? Would Fauci, who hands down government money in the form of grants, give a grant for a study that would demolish the pharma companies that he has his money tied to?

The vaccines obviously have SOME efficacy, but just enough to make a product that sells. If someone sold you a new car, and didn't tell you it would break down 6 months down the road, wouldn't you be angry? They polished the car just enough for you to buy, without telling you what lurked in the shadows the entire time.

Virologists knew the roll-out of a non-sterilizing vaccine would end in the scenario we currently have. Period.