It’s easier to get rid of a single person, but murdering a human is a crime in most countries.
You think that, but squatters have a lot of rights which can make it very hard and expensive or even impossible to get rid of them…
Yeah, my understanding of squatter’s rights (without checking, I can’t be bothered today) is that they have to be openly living in an unoccupied dwelling and the owner has to do nothing to check on the place or have the squatter removed. It’s supposed to be for abandoned properties.