737 Max had two losses in the first two years of operation. That's maybe a decade of commercial flights (at least suspected of) intentionally downed by an authorized pilot according to this list [1].

If you consider that the number of 737 Maxes in service was not that large, it's pretty clear that MCAS was more dangerous than pilot suicide.

[1] https://en.m.wikipedia.org/wiki/Suicide_by_pilot