It was a coalition of monarchies, so terrified of the prospect of even a single popular republic rejecting the divine right to rule, that began the bloodshed and invaded France.
Blaming the Revolution for the Coalition wars is just bad history.
In case you didn't notice, the Revolution won. All contemporary republics fundamentally inherit from the French Revolution - you're surprised that the systems of govt honour and romanticize it's progenitors?
Aside, if bloodshed prevention is your only barometer for history, supporting the Coalition view of events is even sillier, because the Bourbon Restoration directly led to the Revolutions of 1830 and 1848, which was yet more bloodshed. Almost as if unjust systems are fundamentally untenable...