The hardcore, no.

The people who are shifting, however, are the people who like the slogans (black lives, after all, do indeed matter) but are finally waking up that they've been conned by these sayings. There are still some left who haven't woken up to the variance between rhetoric and deeds. Those people continue to come around. Thus you have the Democrat brand imploding.

It's always a question of talking to the "only mildly interested". For the truly committed, they will be put back in the box once the naive begin again to shun them appropriately.