So why get vaccinated if you can still get covid ?

So why get vaccinated if you can still get covid ? I've heard the US is pretty well near herd immunity anyways and if they checked people for antibodies its very probable many have them.Lets see how Dr.Fauci wiggles out of his funding virus research in WuHan ..namely corona viruses and bats.Him and Gates better finding a good hiding spot soon...things are coming unraveled for them.