I think Biden would have won by more.
I somewhat disagree. The immediate organizing of pro-BLM voters and people (especially younger voters) was pivotal to creating a much more visibly political culture, which resulted in lots of otherwise non-voters actually voting in November. There might have been some areas where voting preferences were affected by the protests, and maybe it did play a part in Biden underperforming in a few battleground states, but I'm not sure Biden would have won WI/MI without the massive public outcry that forced voters under 40 to be engaged in social justice issues.
