Missouri also hasn't voted for the Democratic nominee for President in 24 years.
BLM didn't make Hillary lose Missouri but it made her lose it by nearly 20 points. Minnesota was ever so slightly to the right of the popular vote so a flip with Trump running up the score with rural whites concerned about blm is very possible.
The protests happened over two years before the election. Trump won Missouri but that much because of the combination of long-term trends and a favorable year of him in that state.