Aside from the leverage issues other point out in RE, you have to consider the political risk.
How safe do you feel that a piece of paper saying that plot of land is yours will hold up when there's a raging mob threatening politicians to do something about homelessness/housing prices/AirBnB/Asset managers holding all the properties?
The political risk in the West is at Emerging Markets levels. We've seen G7 nations de-bank their citizens extra-judicially, seize assets and remove licenses, remove freedom of movement, create an entire second-class of citizenship, lock up people for committing no crimes. This is normal. No one is protesting. The media agrees as does Hollywood.
If I had anything beyond my one property in which I reside I'd actually be pretty scared. This stuff happens in Emerging Markets all the time: the government tells anyone with more than one property to pick one to keep. All foreign property owners have their property forfeit or taxed to the point where they are forced to sell.
These actions are not out of the realm of possibility in the West any more, especially with the current leaders. There will be no tears shed for the poor landlords and property owners who can only keep their principal residence.