Euripides posted...
The "anti-Biden" folks will fall in line come November
I agree-ish. Only a tiny handful of extremely online types and other very small blocs outside of Arab/Muslim groups will actually drop Biden.
And I think a decent chunk of the primary/current stuff even from that group is a protest rather then a true commitment to not vote for him though he absolutely will lose a non negligible or even quite significant amount of support in that bloc who will likely vote third party or not at all instead.