Which vaccine is not effective? What do you mean by 'effective'? What 'whiners' and what were they whining about? I worry about those who don't get the vaccine for various reasons, not the least of which is that they risk death or long COVID.
As I said in a different post, the vaccines are proven to be effective in reducing the severity of COVID, resulting in fewer hospitalizations and deaths. They are also is effective in reducing transmission of the virus. No one has ever claimed that they are 100% effective (just so we're clear on what is meant by 'effective'), and it seems they may not be quite as effective as initially hoped, but they have had a significant impact in reducing deaths and hospitalizations.
When people don't get vaccinated, the virus spreads more and is in the body longer, so it has a greater chance of mutation. Not to mention there are people who, for various legitimate physiological reasons, cannot get vaccinated, so it does put them at more risk when people don't get vaccinated.