That's not true. Bird strikes are a thing and cause flameouts. You can't even takeoff/land on dirt runways with most jets because the dust will damage the engines.
Smack someone with a goose, then smack them with a Mylar balloon. Compare the results.
You don't want to routinely ingest gravel from a dirt runway (nor balloons!) into your engines. Having one pebble kick up off the runway won't cause an issue.
You suggested an engine will "happily" consume a human which suggests it would continue functioning, you're getting blowback because you are making statements that indicate you don't know what you're talking about.
