I think being found guilty on all 3 counts was based on fear and pressure, not on the evidence. Based on the evidence, manslaughter for sure and a strong case for 3rd degree. 2nd? No, that wasn't based on the evidence. No evidence suggested Chauvin intended to kill Floyd. They found him guilty of 2nd degree because of public pressure and fear of being targeted like others involved in the case have been.
Maxine Waters called for more confrontational protests if the jury didn't come back with a 1st degree murder verdict (a verdict that is impossible since he wasn't charged with it).