Let me put forward the alternative.
My parents spent their retirement living on a pleasant seaside estate. Shortly after they moved there, the owner of a bungalow nearby, used as a holiday home died. When he made his will the bungalow was worth £10,000 and he left £5,000 of its value to his second much younger wife and the rest to his children.
By the time he died the house was worth £50,000 and his second wife was so miffed that despite the increase in value she only got £5,000 that she refused to agree to any sale. The children didn't want the house and didn't live anywhere convenient, so it was left to gradually become derelict.
The second wife outlived her husband by nearly 30 years. The house was on a private estate, she paid the maintenance bills, and when the estate management got contractors in to cut front shrubbery/hedge back from the pavement she paid the bill, likewise whe they put up barriers because the house was in such a parlous state it was not safe, she paid
For 30 years neighbours had to live with this decaying property blighting their homes and the street and they had to deal with rats and other vermin that could live there unmolested.
When the lady finally died, the property was beyond rescue, so it was demolished and the site sold - as a building plot.
I agree that squatting must be controlled. In many big cities it had become an aggressive deliberately destructive and political movement and owners should have strong legal rights to eveict squatters.
But I think there should always be a place for squatter like this man, who gradually moves into a property, maintains it, even improves it and where over a period of 6 years or more the owner does nothing to assert their rights to the property.
The ownership of property carries responsibilities as well as rights.