Muslims are like Ivy. As long as it’s trimmed back it’s fine, but when it starts growing up under the roof and starts growing iunto the siding it has to be cut back drastically.
For years Musims lived in comparative piece, then their numbers grew and they started their Jihads and their BS.
They need drastic trimming.
There have been some, what I’d call scholarly studies, about that very thing....about “at what levels does Islamic infestation become trouble?”....works I’ve seen put it at a couple of levels: 1-2% disruption of societal norms, 5% or more absolute chaos.