Even if it was a uniform distribution, herd immunity is just enough to slow down the spread. The distribution isn't uniform, however. The people who are refus

Even if it was a uniform distribution, herd immunity is just enough to slow down the spread. The distribution isn't uniform, however. The people who are refusing the vaccines are doing so on ideological lines. The ideological lines are in turn largely driven by geography. So the result is that we have social clusters of people with much lower vaccination rates where the virus can spread.