I had the impression they were like sparrows in that they swarm all over food sources and are in particular a scourge for backyard birding because they'll kill off the birds you actually want to see (and consume a ton of seed while they're at it).
I have a bird house with a pair of sparrows. About 20" above that is a nest of breeding Robins that like a spot on the underside of my deck. The sparrows have never messed with the Robin nest in any way. There are eastern bluebirds nearby and the sparrows have caused no trouble for them either, despite the suitability of the house.
This "HOSP" hate is misplaced. Please don't hate on these birds. There are a couple pages on the Internet about the awful depredations of the terrible HOSP and so hating on them has become a fad.
I mean I'll grant that I like looking at blue jays despite them also being notoriously aggressive.