When given the choice between: absolutely provable mathematical scarcity and probabilistic privacy, or absolutely provable privacy and probabilistic scarcity... I will choose provable scarcity every time. 21 million!
Discussion
...and non fungibility + lack of privacy comes with that choice. There are no free choices.
You can use each for it's strength. Save with Bitcoin, spend with Monero.
The consequences of an exploited inflation bug would cripple Bitcoin or Monero either way. Several times in bitcoin history there was a potential exploit, one where only the devs knew, but they honorably patched it.